352991 has 2 divisors, whose sum is σ = 352992. Its totient is φ = 352990.

The previous prime is 352973. The next prime is 353011. The reversal of 352991 is 199253.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 352991 - 2¹⁸ = 90847 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176495 + 176496.

It is an arithmetic number, because the mean of its divisors is an integer number (176496).

2³⁵²⁹⁹¹ is an apocalyptic number.

352991 is a deficient number, since it is larger than the sum of its proper divisors (1).

352991 is an equidigital number, since it uses as much as digits as its factorization.

352991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 29.

The square root of 352991 is about 594.1304570547. The cubic root of 352991 is about 70.6731655152.

The spelling of 352991 in words is "three hundred fifty-two thousand, nine hundred ninety-one".