68624658 has 48 divisors (see below), whose sum is σ = 155020320. Its totient is φ = 22752576.

The previous prime is 68624641. The next prime is 68624671. The reversal of 68624658 is 85642686.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163573 + ... + 163991.

It is an arithmetic number, because the mean of its divisors is an integer number (3229590).

Almost surely, 2^68624658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68624658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77510160).

68624658 is an abundant number, since it is smaller than the sum of its proper divisors (86395662).

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

68624658 is a wasteful number, since it uses less digits than its factorization.

68624658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 761 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 68624658 is about 8284.0001207146. Note that the first 3 decimals coincide. The cubic root of 68624658 is about 409.4115253854.

The spelling of 68624658 in words is "sixty-eight million, six hundred twenty-four thousand, six hundred fifty-eight".