745171604 has 6 divisors (see below), whose sum is σ = 1304050314. Its totient is φ = 372585800.

The previous prime is 745171589. The next prime is 745171613. The reversal of 745171604 is 406171547.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 506160004 + 239011600 = 22498^2 + 15460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93146447 + ... + 93146454.

It is an arithmetic number, because the mean of its divisors is an integer number (217341719).

Almost surely, 2^745171604 is an apocalyptic number.

It is an amenable number.

745171604 is a deficient number, since it is larger than the sum of its proper divisors (558878710).

745171604 is a wasteful number, since it uses less digits than its factorization.

745171604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186292905 (or 186292903 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 745171604 is about 27297.8314889663. The cubic root of 745171604 is about 906.6063689595.

The spelling of 745171604 in words is "seven hundred forty-five million, one hundred seventy-one thousand, six hundred four".