745727170 has 16 divisors (see below), whose sum is σ = 1388595960. Its totient is φ = 288004864.

The previous prime is 745727153. The next prime is 745727189. The reversal of 745727170 is 71727547.

It can be written as a sum of positive squares in 4 ways, for example, as 716793529 + 28933641 = 26773^2 + 5379^2 .

It is a super-2 number, since 2×745727170² = 1112218024152417800, which contains 22 as substring.

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, 1285447 + ... + 1286026.

Almost surely, 2^745727170 is an apocalyptic number.

745727170 is a deficient number, since it is larger than the sum of its proper divisors (642868790).

745727170 is a wasteful number, since it uses less digits than its factorization.

745727170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571509.

The product of its (nonzero) digits is 96040, while the sum is 40.

The square root of 745727170 is about 27308.0056027532. The cubic root of 745727170 is about 906.8316211250.

The spelling of 745727170 in words is "seven hundred forty-five million, seven hundred twenty-seven thousand, one hundred seventy".