745498 has 16 divisors (see below), whose sum is σ = 1229256. Its totient is φ = 336960.

The previous prime is 745477. The next prime is 745517. The reversal of 745498 is 894547.

It can be written as a sum of positive squares in 4 ways, for example, as 558009 + 187489 = 747^2 + 433^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

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, 1108 + ... + 1648.

2⁷⁴⁵⁴⁹⁸ is an apocalyptic number.

745498 is a deficient number, since it is larger than the sum of its proper divisors (483758).

745498 is a wasteful number, since it uses less digits than its factorization.

745498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its digits is 40320, while the sum is 37.

The square root of 745498 is about 863.4222605423. The cubic root of 745498 is about 90.6738718563.

The spelling of 745498 in words is "seven hundred forty-five thousand, four hundred ninety-eight".