66898488 has 32 divisors (see below), whose sum is σ = 167538960. Its totient is φ = 22260480.

The previous prime is 66898471. The next prime is 66898493. The reversal of 66898488 is 88489866.

It is a super-2 number, since 2×66898488² = 8950815393372288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756 + ... + 17972.

Almost surely, 2^66898488 is an apocalyptic number.

It is an amenable number.

66898488 is an abundant number, since it is smaller than the sum of its proper divisors (100640472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66898488 is a wasteful number, since it uses less digits than its factorization.

66898488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887 (or 4883 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 57.

The square root of 66898488 is about 8179.1495890465. The cubic root of 66898488 is about 405.9495840396.

The spelling of 66898488 in words is "sixty-six million, eight hundred ninety-eight thousand, four hundred eighty-eight".