689460767 has 2 divisors, whose sum is σ = 689460768. Its totient is φ = 689460766.

The previous prime is 689460763. The next prime is 689460791. The reversal of 689460767 is 767064986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 689460767 - 2² = 689460763 is a prime.

It is a super-2 number, since 2×689460767² = 950712298464456578, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689460763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344730383 + 344730384.

It is an arithmetic number, because the mean of its divisors is an integer number (344730384).

Almost surely, 2^689460767 is an apocalyptic number.

689460767 is a deficient number, since it is larger than the sum of its proper divisors (1).

689460767 is an equidigital number, since it uses as much as digits as its factorization.

689460767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 689460767 is about 26257.5849422600. The cubic root of 689460767 is about 883.4253408217.

The spelling of 689460767 in words is "six hundred eighty-nine million, four hundred sixty thousand, seven hundred sixty-seven".