755631 has 12 divisors (see below), whose sum is σ = 1102608. Its totient is φ = 498624.

The previous prime is 755627. The next prime is 755663. The reversal of 755631 is 136557.

It is not a de Polignac number, because 755631 - 2² = 755627 is a prime.

It is a super-2 number, since 2×755631² = 1141956416322, which contains 22 as substring.

755631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 755595 and 755604.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 755631.

It is not an unprimeable number, because it can be changed into a prime (755681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 646 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (91884).

2⁷⁵⁵⁶³¹ is an apocalyptic number.

755631 is a deficient number, since it is larger than the sum of its proper divisors (346977).

755631 is a wasteful number, since it uses less digits than its factorization.

755631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 859 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 755631 is about 869.2703837127. The cubic root of 755631 is about 91.0828452980.

The spelling of 755631 in words is "seven hundred fifty-five thousand, six hundred thirty-one".