357457897 has 2 divisors, whose sum is σ = 357457898. Its totient is φ = 357457896.

The previous prime is 357457873. The next prime is 357457907. The reversal of 357457897 is 798754753.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341103961 + 16353936 = 18469^2 + 4044^2 .

It is a cyclic number.

It is not a de Polignac number, because 357457897 - 2⁷ = 357457769 is a prime.

It is a super-2 number, since 2×357457897² = 255552296255325218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (357457817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178728948 + 178728949.

It is an arithmetic number, because the mean of its divisors is an integer number (178728949).

Almost surely, 2^357457897 is an apocalyptic number.

It is an amenable number.

357457897 is a deficient number, since it is larger than the sum of its proper divisors (1).

357457897 is an equidigital number, since it uses as much as digits as its factorization.

357457897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 55.

The square root of 357457897 is about 18906.5569842846. The cubic root of 357457897 is about 709.7002616287.

The spelling of 357457897 in words is "three hundred fifty-seven million, four hundred fifty-seven thousand, eight hundred ninety-seven".