747071631 has 24 divisors (see below), whose sum is σ = 1088994816. Its totient is φ = 493506000.

The previous prime is 747071617. The next prime is 747071653. The reversal of 747071631 is 136170747.

747071631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 747071631 - 2¹⁰ = 747070607 is a prime.

It is a super-2 number, since 2×747071631² = 1116232043690000322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747073631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503016 + ... + 504498.

It is an arithmetic number, because the mean of its divisors is an integer number (45374784).

Almost surely, 2^747071631 is an apocalyptic number.

747071631 is a deficient number, since it is larger than the sum of its proper divisors (341923185).

747071631 is a wasteful number, since it uses less digits than its factorization.

747071631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 747071631 is about 27332.6111266377. The cubic root of 747071631 is about 907.3762652600.

It can be divided in two parts, 7470716 and 31, that added together give a palindrome (7470747).

The spelling of 747071631 in words is "seven hundred forty-seven million, seventy-one thousand, six hundred thirty-one".