745724737 has 8 divisors (see below), whose sum is σ = 793073376. Its totient is φ = 698763072.

The previous prime is 745724731. The next prime is 745724741. The reversal of 745724737 is 737427547.

745724737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 745724737 - 2²³ = 737336129 is a prime.

It is a super-2 number, since 2×745724737² = 1112210766747438338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745724731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92763 + ... + 100480.

It is an arithmetic number, because the mean of its divisors is an integer number (99134172).

Almost surely, 2^745724737 is an apocalyptic number.

It is an amenable number.

745724737 is a deficient number, since it is larger than the sum of its proper divisors (47348639).

745724737 is a wasteful number, since it uses less digits than its factorization.

745724737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193487.

The product of its digits is 1152480, while the sum is 46.

The square root of 745724737 is about 27307.9610553406. The cubic root of 745724737 is about 906.8306349181.

The spelling of 745724737 in words is "seven hundred forty-five million, seven hundred twenty-four thousand, seven hundred thirty-seven".