709564970 has 16 divisors (see below), whose sum is σ = 1278439848. Its totient is φ = 283554240.

The previous prime is 709564963. The next prime is 709564979. The reversal of 709564970 is 79465907.

It can be written as a sum of positive squares in 4 ways, for example, as 406143409 + 303421561 = 20153^2 + 17419^2 .

It is a super-2 number, since 2×709564970² = 1006964893302201800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (709564979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22829 + ... + 44048.

Almost surely, 2^709564970 is an apocalyptic number.

709564970 is a deficient number, since it is larger than the sum of its proper divisors (568874878).

709564970 is a wasteful number, since it uses less digits than its factorization.

709564970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67945.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 709564970 is about 26637.6607456436. The cubic root of 709564970 is about 891.9298987387.

The spelling of 709564970 in words is "seven hundred nine million, five hundred sixty-four thousand, nine hundred seventy".