70911612 has 60 divisors (see below), whose sum is σ = 191794680. Its totient is φ = 22819104.

The previous prime is 70911587. The next prime is 70911623. The reversal of 70911612 is 21611907.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5623 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (3196578).

Almost surely, 2^70911612 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 70911612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95897340).

70911612 is an abundant number, since it is smaller than the sum of its proper divisors (120883068).

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

70911612 is a wasteful number, since it uses less digits than its factorization.

70911612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592 (or 7581 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 70911612 is about 8420.9032769650. The cubic root of 70911612 is about 413.9098732607.

It can be divided in two parts, 709 and 11612, that added together give a palindrome (12321).

The spelling of 70911612 in words is "seventy million, nine hundred eleven thousand, six hundred twelve".