488311961 has 4 divisors (see below), whose sum is σ = 517036212. Its totient is φ = 459587712.

The previous prime is 488311931. The next prime is 488311973. The reversal of 488311961 is 169113884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134119561 + 354192400 = 11581^2 + 18820^2 .

It is a cyclic number.

It is not a de Polignac number, because 488311961 - 2¹⁸ = 488049817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488311921) 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, 14362100 + ... + 14362133.

It is an arithmetic number, because the mean of its divisors is an integer number (129259053).

Almost surely, 2^488311961 is an apocalyptic number.

It is an amenable number.

488311961 is a deficient number, since it is larger than the sum of its proper divisors (28724251).

488311961 is a wasteful number, since it uses less digits than its factorization.

488311961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724250.

The product of its digits is 41472, while the sum is 41.

The square root of 488311961 is about 22097.7818117566. The cubic root of 488311961 is about 787.4671650373.

The spelling of 488311961 in words is "four hundred eighty-eight million, three hundred eleven thousand, nine hundred sixty-one".