70615812 has 48 divisors (see below), whose sum is σ = 171864000. Its totient is φ = 22538880.

The previous prime is 70615793. The next prime is 70615823. The reversal of 70615812 is 21851607.

It is a self number, because there is not a number n which added to its sum of digits gives 70615812.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44814 + ... + 46362.

It is an arithmetic number, because the mean of its divisors is an integer number (3580500).

Almost surely, 2^70615812 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 70615812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85932000).

70615812 is an abundant number, since it is smaller than the sum of its proper divisors (101248188).

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

70615812 is a wasteful number, since it uses less digits than its factorization.

70615812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 70615812 is about 8403.3214861744. The cubic root of 70615812 is about 413.3335446293. Note that the first 3 decimals are identical.

The spelling of 70615812 in words is "seventy million, six hundred fifteen thousand, eight hundred twelve".