66831098 has 8 divisors (see below), whose sum is σ = 100293600. Its totient is φ = 33399900.

The previous prime is 66831053. The next prime is 66831143. The reversal of 66831098 is 89013866.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66831053) and next prime (66831143).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (12536700).

Almost surely, 2^66831098 is an apocalyptic number.

66831098 is a deficient number, since it is larger than the sum of its proper divisors (33462502).

66831098 is a wasteful number, since it uses less digits than its factorization.

66831098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15652.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 66831098 is about 8175.0289296124. The cubic root of 66831098 is about 405.8132275269.

The spelling of 66831098 in words is "sixty-six million, eight hundred thirty-one thousand, ninety-eight".