332791997 has 2 divisors, whose sum is σ = 332791998. Its totient is φ = 332791996.

The previous prime is 332791951. The next prime is 332792021. The reversal of 332791997 is 799197233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303944356 + 28847641 = 17434^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 332791997 - 2⁸ = 332791741 is a prime.

It is a super-2 number, since 2×332791997² = 221501026534496018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332791297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166395998 + 166395999.

It is an arithmetic number, because the mean of its divisors is an integer number (166395999).

Almost surely, 2^332791997 is an apocalyptic number.

It is an amenable number.

332791997 is a deficient number, since it is larger than the sum of its proper divisors (1).

332791997 is an equidigital number, since it uses as much as digits as its factorization.

332791997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 642978, while the sum is 50.

The square root of 332791997 is about 18242.5874535385. The cubic root of 332791997 is about 692.9857293311.

The spelling of 332791997 in words is "three hundred thirty-two million, seven hundred ninety-one thousand, nine hundred ninety-seven".