354644387 has 2 divisors, whose sum is σ = 354644388. Its totient is φ = 354644386.

The previous prime is 354644363. The next prime is 354644401. The reversal of 354644387 is 783446453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354644387 - 2⁸ = 354644131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (354640387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177322193 + 177322194.

It is an arithmetic number, because the mean of its divisors is an integer number (177322194).

Almost surely, 2^354644387 is an apocalyptic number.

354644387 is a deficient number, since it is larger than the sum of its proper divisors (1).

354644387 is an equidigital number, since it uses as much as digits as its factorization.

354644387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 44.

The square root of 354644387 is about 18832.0043277395. The cubic root of 354644387 is about 707.8333652708.

The spelling of 354644387 in words is "three hundred fifty-four million, six hundred forty-four thousand, three hundred eighty-seven".