66892998 has 16 divisors (see below), whose sum is σ = 134297856. Its totient is φ = 22212360.

The previous prime is 66892981. The next prime is 66892999. The reversal of 66892998 is 89929866.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66892999) 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, 19618 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (8393616).

Almost surely, 2^66892998 is an apocalyptic number.

66892998 is an abundant number, since it is smaller than the sum of its proper divisors (67404858).

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

66892998 is a wasteful number, since it uses less digits than its factorization.

66892998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42659.

The product of its digits is 3359232, while the sum is 57.

The square root of 66892998 is about 8178.8139726980. The cubic root of 66892998 is about 405.9384790343.

The spelling of 66892998 in words is "sixty-six million, eight hundred ninety-two thousand, nine hundred ninety-eight".