488479961 has 4 divisors (see below), whose sum is σ = 491758500. Its totient is φ = 485201424.

The previous prime is 488479951. The next prime is 488479963. The reversal of 488479961 is 169974884.

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 45630025 + 442849936 = 6755^2 + 21044^2 .

It is a cyclic number.

It is not a de Polignac number, because 488479961 - 2⁶ = 488479897 is a prime.

It is a super-2 number, since 2×488479961² = 477225344597123042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 488479897 and 488479906.

It is not an unprimeable number, because it can be changed into a prime (488479963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639046 + ... + 1639343.

It is an arithmetic number, because the mean of its divisors is an integer number (122939625).

Almost surely, 2^488479961 is an apocalyptic number.

It is an amenable number.

488479961 is a deficient number, since it is larger than the sum of its proper divisors (3278539).

488479961 is a wasteful number, since it uses less digits than its factorization.

488479961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278538.

The product of its digits is 3483648, while the sum is 56.

The square root of 488479961 is about 22101.5827713764. The cubic root of 488479961 is about 787.5574620370.

The spelling of 488479961 in words is "four hundred eighty-eight million, four hundred seventy-nine thousand, nine hundred sixty-one".