70861616 has 40 divisors (see below), whose sum is σ = 162325920. Its totient is φ = 29320704.

The previous prime is 70861603. The next prime is 70861639. The reversal of 70861616 is 61616807.

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, 7661 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (4058148).

Almost surely, 2^70861616 is an apocalyptic number.

It is an amenable number.

70861616 is an abundant number, since it is smaller than the sum of its proper divisors (91464304).

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

70861616 is a wasteful number, since it uses less digits than its factorization.

70861616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21861 (or 21855 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 70861616 is about 8417.9341883861. The cubic root of 70861616 is about 413.8125751233.

The spelling of 70861616 in words is "seventy million, eight hundred sixty-one thousand, six hundred sixteen".