70828970 has 32 divisors (see below), whose sum is σ = 135474768. Its totient is φ = 26569728.

The previous prime is 70828921. The next prime is 70828973. The reversal of 70828970 is 7982807.

It can be written as a sum of positive squares in 8 ways, for example, as 22401289 + 48427681 = 4733^2 + 6959^2 .

It is not an unprimeable number, because it can be changed into a prime (70828973) 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, 62852 + ... + 63968.

Almost surely, 2^70828970 is an apocalyptic number.

70828970 is a deficient number, since it is larger than the sum of its proper divisors (64645798).

70828970 is a wasteful number, since it uses less digits than its factorization.

70828970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 70828970 is about 8415.9948906829. The cubic root of 70828970 is about 413.7490174400.

The spelling of 70828970 in words is "seventy million, eight hundred twenty-eight thousand, nine hundred seventy".