631473783 has 32 divisors (see below), whose sum is σ = 880889856. Its totient is φ = 402029568.

The previous prime is 631473767. The next prime is 631473793. The reversal of 631473783 is 387374136.

It is not a de Polignac number, because 631473783 - 2⁴ = 631473767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631473793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2400910 + ... + 2401172.

It is an arithmetic number, because the mean of its divisors is an integer number (27527808).

Almost surely, 2^631473783 is an apocalyptic number.

631473783 is a deficient number, since it is larger than the sum of its proper divisors (249416073).

631473783 is a wasteful number, since it uses less digits than its factorization.

631473783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its digits is 254016, while the sum is 42.

The square root of 631473783 is about 25129.1421063275. The cubic root of 631473783 is about 857.9298427755.

The spelling of 631473783 in words is "six hundred thirty-one million, four hundred seventy-three thousand, seven hundred eighty-three".