68632785 has 32 divisors (see below), whose sum is σ = 131402880. Its totient is φ = 33787584.

The previous prime is 68632777. The next prime is 68632799. The reversal of 68632785 is 58723686.

68632785 is a `hidden beast` number, since 6 + 8 + 632 + 7 + 8 + 5 = 666.

It is not a de Polignac number, because 68632785 - 2³ = 68632777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68632785.

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, 17799 + ... + 21308.

It is an arithmetic number, because the mean of its divisors is an integer number (4106340).

Almost surely, 2^68632785 is an apocalyptic number.

68632785 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68632785 is a deficient number, since it is larger than the sum of its proper divisors (62770095).

68632785 is a wasteful number, since it uses less digits than its factorization.

68632785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39134 (or 39128 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 68632785 is about 8284.4906300870. The cubic root of 68632785 is about 409.4276865158.

Subtracting from 68632785 its reverse (58723686), we obtain a palindrome (9909099).

The spelling of 68632785 in words is "sixty-eight million, six hundred thirty-two thousand, seven hundred eighty-five".