7261878 has 32 divisors (see below), whose sum is σ = 15767136. Its totient is φ = 2216448.

The previous prime is 7261871. The next prime is 7261909. The reversal of 7261878 is 8781627.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (37632) is a multiple of the sum of its prime divisors (768).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7261871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11950 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (492723).

Almost surely, 2^7261878 is an apocalyptic number.

7261878 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7261878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7883568).

7261878 is an abundant number, since it is smaller than the sum of its proper divisors (8505258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7261878 is a wasteful number, since it uses less digits than its factorization.

7261878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 37632, while the sum is 39.

The square root of 7261878 is about 2694.7871901135. The cubic root of 7261878 is about 193.6494715398.

The spelling of 7261878 in words is "seven million, two hundred sixty-one thousand, eight hundred seventy-eight".