352399657 has 4 divisors (see below), whose sum is σ = 356645520. Its totient is φ = 348153796.

The previous prime is 352399651. The next prime is 352399673. The reversal of 352399657 is 756993253.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 352399657 - 2⁷ = 352399529 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352399657.

It is not an unprimeable number, because it can be changed into a prime (352399651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122807 + ... + 2122972.

It is an arithmetic number, because the mean of its divisors is an integer number (89161380).

Almost surely, 2^352399657 is an apocalyptic number.

It is an amenable number.

352399657 is a deficient number, since it is larger than the sum of its proper divisors (4245863).

352399657 is an equidigital number, since it uses as much as digits as its factorization.

352399657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245862.

The product of its digits is 1530900, while the sum is 49.

The square root of 352399657 is about 18772.3109126181. The cubic root of 352399657 is about 706.3367872881.

The spelling of 352399657 in words is "three hundred fifty-two million, three hundred ninety-nine thousand, six hundred fifty-seven".