745858 has 8 divisors (see below), whose sum is σ = 1184652. Its totient is φ = 350976.

The previous prime is 745837. The next prime is 745859. The reversal of 745858 is 858547.

It can be written as a sum of positive squares in 2 ways, for example, as 744769 + 1089 = 863^2 + 33^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is not an unprimeable number, because it can be changed into a prime (745859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10935 + ... + 11002.

2⁷⁴⁵⁸⁵⁸ is an apocalyptic number.

745858 is a deficient number, since it is larger than the sum of its proper divisors (438794).

745858 is a wasteful number, since it uses less digits than its factorization.

745858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956.

The product of its digits is 44800, while the sum is 37.

The square root of 745858 is about 863.6307081155. The cubic root of 745858 is about 90.6884649385.

The spelling of 745858 in words is "seven hundred forty-five thousand, eight hundred fifty-eight".