745863 has 4 divisors (see below), whose sum is σ = 994488. Its totient is φ = 497240.

The previous prime is 745859. The next prime is 745873. The reversal of 745863 is 368547.

745863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368547 = 3 ⋅122849.

It is a cyclic number.

It is not a de Polignac number, because 745863 - 2² = 745859 is a prime.

It is a super-2 number, since 2×745863² = 1112623229538, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745873) 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, 124308 + ... + 124313.

It is an arithmetic number, because the mean of its divisors is an integer number (248622).

2⁷⁴⁵⁸⁶³ is an apocalyptic number.

745863 is a deficient number, since it is larger than the sum of its proper divisors (248625).

745863 is a wasteful number, since it uses less digits than its factorization.

745863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248624.

The product of its digits is 20160, while the sum is 33.

The square root of 745863 is about 863.6336028664. The cubic root of 745863 is about 90.6886675872.

The spelling of 745863 in words is "seven hundred forty-five thousand, eight hundred sixty-three".