745000789 has 8 divisors (see below), whose sum is σ = 802829720. Its totient is φ = 687246336.

The previous prime is 745000787. The next prime is 745000801. The reversal of 745000789 is 987000547.

It can be written as a sum of positive squares in 4 ways, for example, as 139004100 + 605996689 = 11790^2 + 24617^2 .

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 745000789 - 2¹ = 745000787 is a prime.

It is a super-2 number, since 2×745000789² = 1110052351221245042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745000783) 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, 3109 + ... + 38725.

It is an arithmetic number, because the mean of its divisors is an integer number (100353715).

Almost surely, 2^745000789 is an apocalyptic number.

It is an amenable number.

745000789 is a deficient number, since it is larger than the sum of its proper divisors (57828931).

745000789 is a wasteful number, since it uses less digits than its factorization.

745000789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37239.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 745000789 is about 27294.7025812702. The cubic root of 745000789 is about 906.5370901516.

The spelling of 745000789 in words is "seven hundred forty-five million, seven hundred eighty-nine", and thus it is an aban number.