631956493 has 16 divisors (see below), whose sum is σ = 752411520. Its totient is φ = 519494400.

The previous prime is 631956463. The next prime is 631956517. The reversal of 631956493 is 394659136.

It is a cyclic number.

It is not a de Polignac number, because 631956493 - 2¹⁷ = 631825421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631956433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 35593.

It is an arithmetic number, because the mean of its divisors is an integer number (47025720).

Almost surely, 2^631956493 is an apocalyptic number.

It is an amenable number.

631956493 is a deficient number, since it is larger than the sum of its proper divisors (120455027).

631956493 is a wasteful number, since it uses less digits than its factorization.

631956493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37428.

The product of its digits is 524880, while the sum is 46.

The square root of 631956493 is about 25138.7448572915. The cubic root of 631956493 is about 858.1483928020.

The spelling of 631956493 in words is "six hundred thirty-one million, nine hundred fifty-six thousand, four hundred ninety-three".