769720331 has 2 divisors, whose sum is σ = 769720332. Its totient is φ = 769720330.

The previous prime is 769720307. The next prime is 769720351. The reversal of 769720331 is 133027967.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 769720331 - 2²⁶ = 702611467 is a prime.

It is a super-2 number, since 2×769720331² = 1184938775909499122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_39667313 and since 769720331 and 39667313 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (769720351) 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 as a sum of consecutive naturals, namely, 384860165 + 384860166.

It is an arithmetic number, because the mean of its divisors is an integer number (384860166).

Almost surely, 2^769720331 is an apocalyptic number.

769720331 is a deficient number, since it is larger than the sum of its proper divisors (1).

769720331 is an equidigital number, since it uses as much as digits as its factorization.

769720331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 769720331 is about 27743.8341077797. The cubic root of 769720331 is about 916.4546644642.

The spelling of 769720331 in words is "seven hundred sixty-nine million, seven hundred twenty thousand, three hundred thirty-one".