488811631 has 32 divisors (see below), whose sum is σ = 623738880. Its totient is φ = 372060000.

The previous prime is 488811629. The next prime is 488811649. The reversal of 488811631 is 136118884.

It is a cyclic number.

It is not a de Polignac number, because 488811631 - 2¹ = 488811629 is a prime.

It is a super-2 number, since 2×488811631² = 477873621201760322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488811601) 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, 650506 + ... + 651256.

It is an arithmetic number, because the mean of its divisors is an integer number (19491840).

Almost surely, 2^488811631 is an apocalyptic number.

488811631 is a deficient number, since it is larger than the sum of its proper divisors (134927249).

488811631 is a wasteful number, since it uses less digits than its factorization.

488811631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955.

The product of its digits is 36864, while the sum is 40.

The square root of 488811631 is about 22109.0848069295. The cubic root of 488811631 is about 787.7356679735.

The spelling of 488811631 in words is "four hundred eighty-eight million, eight hundred eleven thousand, six hundred thirty-one".