747611645 has 16 divisors (see below), whose sum is σ = 979542720. Its totient is φ = 543244800.

The previous prime is 747611633. The next prime is 747611647. The reversal of 747611645 is 546116747.

It is not a de Polignac number, because 747611645 - 2⁶ = 747611581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747611647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65741 + ... + 76269.

It is an arithmetic number, because the mean of its divisors is an integer number (61221420).

Almost surely, 2^747611645 is an apocalyptic number.

It is an amenable number.

747611645 is a deficient number, since it is larger than the sum of its proper divisors (231931075).

747611645 is a wasteful number, since it uses less digits than its factorization.

747611645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its digits is 141120, while the sum is 41.

The square root of 747611645 is about 27342.4879080160. The cubic root of 747611645 is about 907.5948421901.

The spelling of 747611645 in words is "seven hundred forty-seven million, six hundred eleven thousand, six hundred forty-five".