769628239 has 2 divisors, whose sum is σ = 769628240. Its totient is φ = 769628238.

The previous prime is 769628213. The next prime is 769628281. The reversal of 769628239 is 932826967.

It is a weak prime.

It is an emirp because it is prime and its reverse (932826967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769628239 - 2¹⁷ = 769497167 is a prime.

It is a super-2 number, since 2×769628239² = 1184655252532482242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769628339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384814119 + 384814120.

It is an arithmetic number, because the mean of its divisors is an integer number (384814120).

Almost surely, 2^769628239 is an apocalyptic number.

769628239 is a deficient number, since it is larger than the sum of its proper divisors (1).

769628239 is an equidigital number, since it uses as much as digits as its factorization.

769628239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 769628239 is about 27742.1743740465. The cubic root of 769628239 is about 916.4181137389.

The spelling of 769628239 in words is "seven hundred sixty-nine million, six hundred twenty-eight thousand, two hundred thirty-nine".