631063478 has 8 divisors (see below), whose sum is σ = 959927760. Its totient is φ = 311087560.

The previous prime is 631063471. The next prime is 631063481. The reversal of 631063478 is 874360136.

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

It is a super-2 number, since 2×631063478² = 796482226530912968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631063471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221913 + ... + 2222196.

It is an arithmetic number, because the mean of its divisors is an integer number (119990970).

Almost surely, 2^631063478 is an apocalyptic number.

631063478 is a deficient number, since it is larger than the sum of its proper divisors (328864282).

631063478 is a wasteful number, since it uses less digits than its factorization.

631063478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444182.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 631063478 is about 25120.9768520255. The cubic root of 631063478 is about 857.7439869875.

The spelling of 631063478 in words is "six hundred thirty-one million, sixty-three thousand, four hundred seventy-eight".