352399993 has 4 divisors (see below), whose sum is σ = 384436368. Its totient is φ = 320363620.

The previous prime is 352399963. The next prime is 352400023. The reversal of 352399993 is 399993253.

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 an interprime number because it is at equal distance from previous prime (352399963) and next prime (352400023).

It is a cyclic number.

It is not a de Polignac number, because 352399993 - 2¹⁷ = 352268921 is a prime.

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 352399993.

It is not an unprimeable number, because it can be changed into a prime (352399903) 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, 16018171 + ... + 16018192.

It is an arithmetic number, because the mean of its divisors is an integer number (96109092).

Almost surely, 2^352399993 is an apocalyptic number.

It is an amenable number.

352399993 is a deficient number, since it is larger than the sum of its proper divisors (32036375).

352399993 is a wasteful number, since it uses less digits than its factorization.

352399993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32036374.

The product of its digits is 1771470, while the sum is 52.

The square root of 352399993 is about 18772.3198619670. The cubic root of 352399993 is about 706.3370117767.

The spelling of 352399993 in words is "three hundred fifty-two million, three hundred ninety-nine thousand, nine hundred ninety-three".