7425678 has 64 divisors (see below), whose sum is σ = 17160192. Its totient is φ = 2125440.

The previous prime is 7425667. The next prime is 7425683. The reversal of 7425678 is 8765247.

7425678 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89425 + ... + 89507.

It is an arithmetic number, because the mean of its divisors is an integer number (268128).

Almost surely, 2^7425678 is an apocalyptic number.

7425678 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 7425678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8580096).

7425678 is an abundant number, since it is smaller than the sum of its proper divisors (9734514).

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

7425678 is a wasteful number, since it uses less digits than its factorization.

7425678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its digits is 94080, while the sum is 39.

The square root of 7425678 is about 2725.0097247533. The cubic root of 7425678 is about 195.0946549009.

It can be divided in two parts, 74 and 25678, that added together give a palindrome (25752).

The spelling of 7425678 in words is "seven million, four hundred twenty-five thousand, six hundred seventy-eight".