488017921 has 8 divisors (see below), whose sum is σ = 497677824. Its totient is φ = 478438560.

The previous prime is 488017909. The next prime is 488017927. The reversal of 488017921 is 129710884.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 488017921 - 2¹⁷ = 487886849 is a prime.

It is a super-2 number, since 2×488017921² = 476322982434324482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488017927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7825 + ... + 32206.

It is an arithmetic number, because the mean of its divisors is an integer number (62209728).

Almost surely, 2^488017921 is an apocalyptic number.

It is an amenable number.

488017921 is a deficient number, since it is larger than the sum of its proper divisors (9659903).

488017921 is a wasteful number, since it uses less digits than its factorization.

488017921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40271.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 488017921 is about 22091.1276534268. The cubic root of 488017921 is about 787.3090739295.

It can be divided in two parts, 4880 and 17921, that added together give a square (22801 = 151²).

The spelling of 488017921 in words is "four hundred eighty-eight million, seventeen thousand, nine hundred twenty-one".