747628623 has 72 divisors (see below), whose sum is σ = 1338743952. Its totient is φ = 415425024.

The previous prime is 747628621. The next prime is 747628631. The reversal of 747628623 is 326826747.

It is not a de Polignac number, because 747628623 - 2¹ = 747628621 is a prime.

It is a super-2 number, since 2×747628623² = 1117897115857752258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747628621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 439711 + ... + 441407.

It is an arithmetic number, because the mean of its divisors is an integer number (18593666).

Almost surely, 2^747628623 is an apocalyptic number.

747628623 is a deficient number, since it is larger than the sum of its proper divisors (591115329).

747628623 is a wasteful number, since it uses less digits than its factorization.

747628623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1744 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 747628623 is about 27342.7983754407. The cubic root of 747628623 is about 907.6017125256.

The spelling of 747628623 in words is "seven hundred forty-seven million, six hundred twenty-eight thousand, six hundred twenty-three".