7261998 has 16 divisors (see below), whose sum is σ = 14992896. Its totient is φ = 2342520.

The previous prime is 7261981. The next prime is 7261999. The reversal of 7261998 is 8991627.

It is a super-2 number, since 2×7261998² = 105473229904008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7261999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19336 + ... + 19707.

It is an arithmetic number, because the mean of its divisors is an integer number (937056).

Almost surely, 2^7261998 is an apocalyptic number.

7261998 is an abundant number, since it is smaller than the sum of its proper divisors (7730898).

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

7261998 is a wasteful number, since it uses less digits than its factorization.

7261998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39079.

The product of its digits is 54432, while the sum is 42.

The square root of 7261998 is about 2694.8094552306. The cubic root of 7261998 is about 193.6505381972.

The spelling of 7261998 in words is "seven million, two hundred sixty-one thousand, nine hundred ninety-eight".