68740704 has 48 divisors (see below), whose sum is σ = 200496240. Its totient is φ = 22913280.

The previous prime is 68740697. The next prime is 68740729. The reversal of 68740704 is 40704786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38917 + ... + 40644.

It is an arithmetic number, because the mean of its divisors is an integer number (4177005).

Almost surely, 2^68740704 is an apocalyptic number.

It is an amenable number.

68740704 is an abundant number, since it is smaller than the sum of its proper divisors (131755536).

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

68740704 is a wasteful number, since it uses less digits than its factorization.

68740704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79580 (or 79566 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 68740704 is about 8291.0013870461. The cubic root of 68740704 is about 409.6421704425.

The spelling of 68740704 in words is "sixty-eight million, seven hundred forty thousand, seven hundred four".