631037423 has 8 divisors (see below), whose sum is σ = 641200560. Its totient is φ = 620896320.

The previous prime is 631037417. The next prime is 631037441. The reversal of 631037423 is 324730136.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631037423 - 2⁶ = 631037359 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631037413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58043 + ... + 68051.

It is an arithmetic number, because the mean of its divisors is an integer number (80150070).

Almost surely, 2^631037423 is an apocalyptic number.

631037423 is a deficient number, since it is larger than the sum of its proper divisors (10163137).

631037423 is a wasteful number, since it uses less digits than its factorization.

631037423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 631037423 is about 25120.4582561704. The cubic root of 631037423 is about 857.7321821385.

Adding to 631037423 its reverse (324730136), we get a palindrome (955767559).

The spelling of 631037423 in words is "six hundred thirty-one million, thirty-seven thousand, four hundred twenty-three".