747127431 has 6 divisors (see below), whose sum is σ = 1079184080. Its totient is φ = 498084948.

The previous prime is 747127427. The next prime is 747127471. The reversal of 747127431 is 134721747.

It is not a de Polignac number, because 747127431 - 2² = 747127427 is a prime.

It is a super-2 number, since 2×747127431² = 1116398796305319522, 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 (747127471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41507071 + ... + 41507088.

Almost surely, 2^747127431 is an apocalyptic number.

747127431 is a deficient number, since it is larger than the sum of its proper divisors (332056649).

747127431 is a wasteful number, since it uses less digits than its factorization.

747127431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83014165 (or 83014162 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 747127431 is about 27333.6318662559. The cubic root of 747127431 is about 907.3988558359.

The spelling of 747127431 in words is "seven hundred forty-seven million, one hundred twenty-seven thousand, four hundred thirty-one".