352873721 has 2 divisors, whose sum is σ = 352873722. Its totient is φ = 352873720.

The previous prime is 352873679. The next prime is 352873739. The reversal of 352873721 is 127378253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351037696 + 1836025 = 18736^2 + 1355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-352873721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (352803721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176436860 + 176436861.

It is an arithmetic number, because the mean of its divisors is an integer number (176436861).

Almost surely, 2^352873721 is an apocalyptic number.

It is an amenable number.

352873721 is a deficient number, since it is larger than the sum of its proper divisors (1).

352873721 is an equidigital number, since it uses as much as digits as its factorization.

352873721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 352873721 is about 18784.9333509598. The cubic root of 352873721 is about 706.6533774596.

The spelling of 352873721 in words is "three hundred fifty-two million, eight hundred seventy-three thousand, seven hundred twenty-one".