70561716 has 12 divisors (see below), whose sum is σ = 164644032. Its totient is φ = 23520568.

The previous prime is 70561681. The next prime is 70561721. The reversal of 70561716 is 61716507.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2940060 + ... + 2940083.

It is an arithmetic number, because the mean of its divisors is an integer number (13720336).

Almost surely, 2^70561716 is an apocalyptic number.

It is an amenable number.

70561716 is an abundant number, since it is smaller than the sum of its proper divisors (94082316).

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

70561716 is a wasteful number, since it uses less digits than its factorization.

70561716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880150 (or 5880148 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 70561716 is about 8400.1021422361. The cubic root of 70561716 is about 413.2279714682.

The spelling of 70561716 in words is "seventy million, five hundred sixty-one thousand, seven hundred sixteen".