928147972 has 6 divisors (see below), whose sum is σ = 1624258958. Its totient is φ = 464073984.

The previous prime is 928147951. The next prime is 928147993. The reversal of 928147972 is 279741829.

It is an interprime number because it is at equal distance from previous prime (928147951) and next prime (928147993).

It can be written as a sum of positive squares in only one way, i.e., 533887236 + 394260736 = 23106^2 + 19856^2 .

It is a super-2 number, since 2×928147972² = 1722917315855425568, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 116018493 + ... + 116018500.

Almost surely, 2^928147972 is an apocalyptic number.

It is an amenable number.

928147972 is a deficient number, since it is larger than the sum of its proper divisors (696110986).

928147972 is a wasteful number, since it uses less digits than its factorization.

928147972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232036997 (or 232036995 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 928147972 is about 30465.5210360827. The cubic root of 928147972 is about 975.4516327992.

The spelling of 928147972 in words is "nine hundred twenty-eight million, one hundred forty-seven thousand, nine hundred seventy-two".