68678632 has 24 divisors (see below), whose sum is σ = 141545250. Its totient is φ = 31217120.

The previous prime is 68678573. The next prime is 68678647. The reversal of 68678632 is 23687686.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 16924996 = 7194^2 + 4114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34507 + ... + 36442.

Almost surely, 2^68678632 is an apocalyptic number.

It is an amenable number.

68678632 is an abundant number, since it is smaller than the sum of its proper divisors (72866618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68678632 is a wasteful number, since it uses less digits than its factorization.

68678632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70977 (or 70962 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 68678632 is about 8287.2572060966. The cubic root of 68678632 is about 409.5188327174.

The spelling of 68678632 in words is "sixty-eight million, six hundred seventy-eight thousand, six hundred thirty-two".