631779465 has 8 divisors (see below), whose sum is σ = 1010847168. Its totient is φ = 336949040.

The previous prime is 631779427. The next prime is 631779487. The reversal of 631779465 is 564977136.

It is a happy number.

631779465 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631779465 - 2¹⁴ = 631763081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21059301 + ... + 21059330.

It is an arithmetic number, because the mean of its divisors is an integer number (126355896).

Almost surely, 2^631779465 is an apocalyptic number.

It is an amenable number.

631779465 is a deficient number, since it is larger than the sum of its proper divisors (379067703).

631779465 is a wasteful number, since it uses less digits than its factorization.

631779465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42118639.

The product of its digits is 952560, while the sum is 48.

The square root of 631779465 is about 25135.2235916055. The cubic root of 631779465 is about 858.0682551750.

The spelling of 631779465 in words is "six hundred thirty-one million, seven hundred seventy-nine thousand, four hundred sixty-five".