747158641 has 4 divisors (see below), whose sum is σ = 786482800. Its totient is φ = 707834484.

The previous prime is 747158627. The next prime is 747158663. The reversal of 747158641 is 146851747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 747158641 - 2⁵ = 747158609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747158441) 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, 19662051 + ... + 19662088.

It is an arithmetic number, because the mean of its divisors is an integer number (196620700).

Almost surely, 2^747158641 is an apocalyptic number.

It is an amenable number.

747158641 is a deficient number, since it is larger than the sum of its proper divisors (39324159).

747158641 is a wasteful number, since it uses less digits than its factorization.

747158641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39324158.

The product of its digits is 188160, while the sum is 43.

The square root of 747158641 is about 27334.2027686926. The cubic root of 747158641 is about 907.4114906836.

The spelling of 747158641 in words is "seven hundred forty-seven million, one hundred fifty-eight thousand, six hundred forty-one".