8372640892 has 24 divisors (see below), whose sum is σ = 18267580800. Its totient is φ = 3262067760.

The previous prime is 8372640883. The next prime is 8372640901. The reversal of 8372640892 is 2980462738.

It is an interprime number because it is at equal distance from previous prime (8372640883) and next prime (8372640901).

It is a super-2 number, since 2×8372640892² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13591642 + ... + 13592257.

It is an arithmetic number, because the mean of its divisors is an integer number (761149200).

Almost surely, 2^8372640892 is an apocalyptic number.

It is an amenable number.

8372640892 is an abundant number, since it is smaller than the sum of its proper divisors (9894939908).

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

8372640892 is a wasteful number, since it uses less digits than its factorization.

8372640892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27183921 (or 27183919 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 8372640892 is about 91502.1359969263. The cubic root of 8372640892 is about 2030.5833531000.

The spelling of 8372640892 in words is "eight billion, three hundred seventy-two million, six hundred forty thousand, eight hundred ninety-two".