713631 has 4 divisors (see below), whose sum is σ = 951512. Its totient is φ = 475752.

The previous prime is 713627. The next prime is 713653. The reversal of 713631 is 136317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136317 = 3 ⋅45439.

It is not a de Polignac number, because 713631 - 2² = 713627 is a prime.

It is a super-2 number, since 2×713631² = 1018538408322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 713598 and 713607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713611) 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 3 ways as a sum of consecutive naturals, for example, 118936 + ... + 118941.

It is an arithmetic number, because the mean of its divisors is an integer number (237878).

2⁷¹³⁶³¹ is an apocalyptic number.

713631 is a deficient number, since it is larger than the sum of its proper divisors (237881).

713631 is a wasteful number, since it uses less digits than its factorization.

713631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237880.

The product of its digits is 378, while the sum is 21.

The square root of 713631 is about 844.7668317352. The cubic root of 713631 is about 89.3630334281.

Adding to 713631 its reverse (136317), we get a palindrome (849948).

The spelling of 713631 in words is "seven hundred thirteen thousand, six hundred thirty-one".