70813212 has 48 divisors (see below), whose sum is σ = 168702240. Its totient is φ = 23113728.

The previous prime is 70813189. The next prime is 70813213. The reversal of 70813212 is 21231807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70813213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200428 + ... + 200780.

It is an arithmetic number, because the mean of its divisors is an integer number (3514630).

Almost surely, 2^70813212 is an apocalyptic number.

It is an amenable number.

70813212 is an abundant number, since it is smaller than the sum of its proper divisors (97889028).

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

70813212 is a wasteful number, since it uses less digits than its factorization.

70813212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 70813212 is about 8415.0586450719. The cubic root of 70813212 is about 413.7183315940.

The spelling of 70813212 in words is "seventy million, eight hundred thirteen thousand, two hundred twelve".