76830705 has 48 divisors (see below), whose sum is σ = 153114624. Its totient is φ = 34911360.

The previous prime is 76830703. The next prime is 76830731. The reversal of 76830705 is 50703867.

It is not a de Polignac number, because 76830705 - 2¹ = 76830703 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 76830705.

It is not an unprimeable number, because it can be changed into a prime (76830703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59527 + ... + 60803.

It is an arithmetic number, because the mean of its divisors is an integer number (3189888).

Almost surely, 2^76830705 is an apocalyptic number.

It is an amenable number.

76830705 is a deficient number, since it is larger than the sum of its proper divisors (76283919).

76830705 is a wasteful number, since it uses less digits than its factorization.

76830705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 76830705 is about 8765.3126013851. The cubic root of 76830705 is about 425.1200675757.

The spelling of 76830705 in words is "seventy-six million, eight hundred thirty thousand, seven hundred five".