928139732 has 12 divisors (see below), whose sum is σ = 1749186516. Its totient is φ = 428372160.

The previous prime is 928139731. The next prime is 928139777. The reversal of 928139732 is 237931829.

It is a happy number.

928139732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 331021636 + 597118096 = 18194^2 + 24436^2 .

It is a super-2 number, since 2×928139732² = 1722886724234063648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928139731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8924369 + ... + 8924472.

It is an arithmetic number, because the mean of its divisors is an integer number (145765543).

Almost surely, 2^928139732 is an apocalyptic number.

It is an amenable number.

928139732 is a deficient number, since it is larger than the sum of its proper divisors (821046784).

928139732 is a wasteful number, since it uses less digits than its factorization.

928139732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848858 (or 17848856 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 928139732 is about 30465.3858009381. The cubic root of 928139732 is about 975.4487461384.

The spelling of 928139732 in words is "nine hundred twenty-eight million, one hundred thirty-nine thousand, seven hundred thirty-two".