928147057 has 2 divisors, whose sum is σ = 928147058. Its totient is φ = 928147056.

The previous prime is 928147049. The next prime is 928147061. The reversal of 928147057 is 750741829.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927567936 + 579121 = 30456^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 928147057 - 2³ = 928147049 is a prime.

It is a super-2 number, since 2×928147057² = 1722913918835522498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (928147027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464073528 + 464073529.

It is an arithmetic number, because the mean of its divisors is an integer number (464073529).

Almost surely, 2^928147057 is an apocalyptic number.

It is an amenable number.

928147057 is a deficient number, since it is larger than the sum of its proper divisors (1).

928147057 is an equidigital number, since it uses as much as digits as its factorization.

928147057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 928147057 is about 30465.5060191030. The cubic root of 928147057 is about 975.4513122546.

The spelling of 928147057 in words is "nine hundred twenty-eight million, one hundred forty-seven thousand, fifty-seven".