354708623 has 2 divisors, whose sum is σ = 354708624. Its totient is φ = 354708622.

The previous prime is 354708617. The next prime is 354708631. The reversal of 354708623 is 326807453.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 354708623 - 2¹² = 354704527 is a prime.

It is a super-2 number, since 2×354708623² = 251636414461112258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354708023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177354311 + 177354312.

It is an arithmetic number, because the mean of its divisors is an integer number (177354312).

Almost surely, 2^354708623 is an apocalyptic number.

354708623 is a deficient number, since it is larger than the sum of its proper divisors (1).

354708623 is an equidigital number, since it uses as much as digits as its factorization.

354708623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 354708623 is about 18833.7097514005. The cubic root of 354708623 is about 707.8760988191.

The spelling of 354708623 in words is "three hundred fifty-four million, seven hundred eight thousand, six hundred twenty-three".