745700906 has 4 divisors (see below), whose sum is σ = 1118551362. Its totient is φ = 372850452.

The previous prime is 745700887. The next prime is 745700927. The reversal of 745700906 is 609007547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 722265625 + 23435281 = 26875^2 + 4841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 745700906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186425225 + ... + 186425228.

Almost surely, 2^745700906 is an apocalyptic number.

745700906 is a deficient number, since it is larger than the sum of its proper divisors (372850456).

745700906 is a wasteful number, since it uses less digits than its factorization.

745700906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372850455.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 745700906 is about 27307.5247138953. The cubic root of 745700906 is about 906.8209750038.

The spelling of 745700906 in words is "seven hundred forty-five million, seven hundred thousand, nine hundred six".