354523391 has 2 divisors, whose sum is σ = 354523392. Its totient is φ = 354523390.

The previous prime is 354523363. The next prime is 354523493. The reversal of 354523391 is 193325453.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 354523391 - 2⁶ = 354523327 is a prime.

It is a super-2 number, since 2×354523391² = 251373669532277762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354523361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177261695 + 177261696.

It is an arithmetic number, because the mean of its divisors is an integer number (177261696).

Almost surely, 2^354523391 is an apocalyptic number.

354523391 is a deficient number, since it is larger than the sum of its proper divisors (1).

354523391 is an equidigital number, since it uses as much as digits as its factorization.

354523391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 35.

The square root of 354523391 is about 18828.7915438033. The cubic root of 354523391 is about 707.7528576309.

The spelling of 354523391 in words is "three hundred fifty-four million, five hundred twenty-three thousand, three hundred ninety-one".