745817956 has 18 divisors (see below), whose sum is σ = 1413304242. Its totient is φ = 344223360.

The previous prime is 745817939. The next prime is 745817959. The reversal of 745817956 is 659718547.

It can be written as a sum of positive squares in 3 ways, for example, as 49702500 + 696115456 = 7050^2 + 26384^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (745817959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550965 + ... + 552316.

Almost surely, 2^745817956 is an apocalyptic number.

It is an amenable number.

745817956 is a deficient number, since it is larger than the sum of its proper divisors (667486286).

745817956 is a wasteful number, since it uses less digits than its factorization.

745817956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103311 (or 1103296 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 52.

The square root of 745817956 is about 27309.6678119672. The cubic root of 745817956 is about 906.8684193349.

The spelling of 745817956 in words is "seven hundred forty-five million, eight hundred seventeen thousand, nine hundred fifty-six".