7971492 has 24 divisors (see below), whose sum is σ = 18648000. Its totient is φ = 2650336.

The previous prime is 7971461. The next prime is 7971493. The reversal of 7971492 is 2941797.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7971492.

It is not an unprimeable number, because it can be changed into a prime (7971493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6634 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (777000).

Almost surely, 2^7971492 is an apocalyptic number.

It is an amenable number.

7971492 is an abundant number, since it is smaller than the sum of its proper divisors (10676508).

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

7971492 is a wasteful number, since it uses less digits than its factorization.

7971492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1713 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 7971492 is about 2823.3830770903. The cubic root of 7971492 is about 199.7621505837.

The spelling of 7971492 in words is "seven million, nine hundred seventy-one thousand, four hundred ninety-two".