912087072 has 72 divisors (see below), whose sum is σ = 2793278124. Its totient is φ = 280641024.

The previous prime is 912087049. The next prime is 912087073. The reversal of 912087072 is 270780219.

It can be written as a sum of positive squares in 2 ways, for example, as 909384336 + 2702736 = 30156^2 + 1644^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (912087073) 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 11 ways as a sum of consecutive naturals, for example, 118063 + ... + 125550.

Almost surely, 2^912087072 is an apocalyptic number.

It is an amenable number.

912087072 is an abundant number, since it is smaller than the sum of its proper divisors (1881191052).

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

912087072 is a wasteful number, since it uses less digits than its factorization.

912087072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243642 (or 243631 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 912087072 is about 30200.7793276929. The cubic root of 912087072 is about 969.7923784208.

The spelling of 912087072 in words is "nine hundred twelve million, eighty-seven thousand, seventy-two".