914721992 has 60 divisors (see below), whose sum is σ = 1872878805. Its totient is φ = 418823424.

The previous prime is 914721979. The next prime is 914722021. The reversal of 914721992 is 299127419.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 685078276 + 229643716 = 26174^2 + 15154^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=21386.

It is a Duffinian number.

Its product of digits (81648) is a multiple of the sum of its prime divisors (56).

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 24722198 + ... + 24722234.

Almost surely, 2^914721992 is an apocalyptic number.

It is an amenable number.

914721992 is an abundant number, since it is smaller than the sum of its proper divisors (958156813).

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

914721992 is an frugal number, since it uses more digits than its factorization.

914721992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 56 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 914721992 is about 30244.3712449110. The cubic root of 914721992 is about 970.7253553512.

The spelling of 914721992 in words is "nine hundred fourteen million, seven hundred twenty-one thousand, nine hundred ninety-two".