915795972 has 144 divisors (see below), whose sum is σ = 2999301760. Its totient is φ = 228801024.

The previous prime is 915795971. The next prime is 915795973. The reversal of 915795972 is 279597519.

It is an interprime number because it is at equal distance from previous prime (915795971) and next prime (915795973).

It is not an unprimeable number, because it can be changed into a prime (915795971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54888 + ... + 69600.

Almost surely, 2^915795972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 915795972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499650880).

915795972 is an abundant number, since it is smaller than the sum of its proper divisors (2083505788).

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

915795972 is a wasteful number, since it uses less digits than its factorization.

915795972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14762 (or 14757 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 54.

The square root of 915795972 is about 30262.1210756946. The cubic root of 915795972 is about 971.1051180460.

The spelling of 915795972 in words is "nine hundred fifteen million, seven hundred ninety-five thousand, nine hundred seventy-two".