70764720 has 160 divisors (see below), whose sum is σ = 243026112. Its totient is φ = 16920576.

The previous prime is 70764703. The next prime is 70764731. The reversal of 70764720 is 2746707.

It is a happy number.

It is a congruent number.

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, 115134 + ... + 115746.

Almost surely, 2^70764720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70764720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121513056).

70764720 is an abundant number, since it is smaller than the sum of its proper divisors (172261392).

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

70764720 is a wasteful number, since it uses less digits than its factorization.

70764720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 70764720 is about 8412.1768882971. The cubic root of 70764720 is about 413.6238736536.

The spelling of 70764720 in words is "seventy million, seven hundred sixty-four thousand, seven hundred twenty".