331996699 has 2 divisors, whose sum is σ = 331996700. Its totient is φ = 331996698.

The previous prime is 331996667. The next prime is 331996729. The reversal of 331996699 is 996699133.

It is a strong prime.

It is an emirp because it is prime and its reverse (996699133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331996699 - 2⁵ = 331996667 is a prime.

It is a super-2 number, since 2×331996699² = 220443616293793202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331996619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165998349 + 165998350.

It is an arithmetic number, because the mean of its divisors is an integer number (165998350).

Almost surely, 2^331996699 is an apocalyptic number.

331996699 is a deficient number, since it is larger than the sum of its proper divisors (1).

331996699 is an equidigital number, since it uses as much as digits as its factorization.

331996699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2125764, while the sum is 55.

The square root of 331996699 is about 18220.7765751079. The cubic root of 331996699 is about 692.4332623457.

The spelling of 331996699 in words is "three hundred thirty-one million, nine hundred ninety-six thousand, six hundred ninety-nine".