352691393 has 4 divisors (see below), whose sum is σ = 352938948. Its totient is φ = 352443840.

The previous prime is 352691377. The next prime is 352691399. The reversal of 352691393 is 393196253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117007489 + 235683904 = 10817^2 + 15352^2 .

It is a cyclic number.

It is not a de Polignac number, because 352691393 - 2⁴ = 352691377 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 352691393.

It is not an unprimeable number, because it can be changed into a prime (352691399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121628 + ... + 124493.

It is an arithmetic number, because the mean of its divisors is an integer number (88234737).

Almost surely, 2^352691393 is an apocalyptic number.

It is an amenable number.

352691393 is a deficient number, since it is larger than the sum of its proper divisors (247555).

352691393 is a wasteful number, since it uses less digits than its factorization.

352691393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247554.

The product of its digits is 131220, while the sum is 41.

The square root of 352691393 is about 18780.0796856669. The cubic root of 352691393 is about 706.5316484610.

The spelling of 352691393 in words is "three hundred fifty-two million, six hundred ninety-one thousand, three hundred ninety-three".