680765735 has 32 divisors (see below), whose sum is σ = 915425280. Its totient is φ = 482601600.

The previous prime is 680765699. The next prime is 680765759. The reversal of 680765735 is 537567086.

It is a happy number.

It is not a de Polignac number, because 680765735 - 2⁶ = 680765671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680765735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262676 + ... + 265254.

It is an arithmetic number, because the mean of its divisors is an integer number (28607040).

Almost surely, 2^680765735 is an apocalyptic number.

680765735 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

680765735 is a deficient number, since it is larger than the sum of its proper divisors (234659545).

680765735 is a wasteful number, since it uses less digits than its factorization.

680765735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 680765735 is about 26091.4877881657. The cubic root of 680765735 is about 879.6958896663.

The spelling of 680765735 in words is "six hundred eighty million, seven hundred sixty-five thousand, seven hundred thirty-five".