70830772 has 24 divisors (see below), whose sum is σ = 131503176. Its totient is φ = 33266688.

The previous prime is 70830769. The next prime is 70830811. The reversal of 70830772 is 27703807.

It can be written as a sum of positive squares in 4 ways, for example, as 38613796 + 32216976 = 6214^2 + 5676^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 64258 + ... + 65350.

It is an arithmetic number, because the mean of its divisors is an integer number (5479299).

Almost surely, 2^70830772 is an apocalyptic number.

It is an amenable number.

70830772 is a deficient number, since it is larger than the sum of its proper divisors (60672404).

70830772 is a wasteful number, since it uses less digits than its factorization.

70830772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 70830772 is about 8416.1019480517. The cubic root of 70830772 is about 413.7525262181.

The spelling of 70830772 in words is "seventy million, eight hundred thirty thousand, seven hundred seventy-two".