357928561 has 3 divisors (see below), whose sum is σ = 357947481. Its totient is φ = 357909642.

The previous prime is 357928559. The next prime is 357928567. The reversal of 357928561 is 165829753.

The square root of 357928561 is 18919.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 165829753 = 211 ⋅785923.

It is not a de Polignac number, because 357928561 - 2¹ = 357928559 is a prime.

It is a super-2 number, since 2×357928561² = 256225709559061442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (357928567) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9460 + ... + 28378.

It is an arithmetic number, because the mean of its divisors is an integer number (119315827).

Almost surely, 2^357928561 is an apocalyptic number.

357928561 is the 18919-th square number.

357928561 is the 9460-th centered octagonal number.

It is an amenable number.

357928561 is a deficient number, since it is larger than the sum of its proper divisors (18920).

357928561 is an frugal number, since it uses more digits than its factorization.

357928561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37838 (or 18919 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The cubic root of 357928561 is about 710.0116119241.

The spelling of 357928561 in words is "three hundred fifty-seven million, nine hundred twenty-eight thousand, five hundred sixty-one".