66879087 has 8 divisors (see below), whose sum is σ = 97278720. Its totient is φ = 40532760.

The previous prime is 66879083. The next prime is 66879103. The reversal of 66879087 is 78097866.

It is a happy number.

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

It is not a de Polignac number, because 66879087 - 2² = 66879083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66879083) 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, 1013287 + ... + 1013352.

It is an arithmetic number, because the mean of its divisors is an integer number (12159840).

Almost surely, 2^66879087 is an apocalyptic number.

66879087 is a deficient number, since it is larger than the sum of its proper divisors (30399633).

66879087 is a wasteful number, since it uses less digits than its factorization.

66879087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026653.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 66879087 is about 8177.9634995517. The cubic root of 66879087 is about 405.9103375654.

The spelling of 66879087 in words is "sixty-six million, eight hundred seventy-nine thousand, eighty-seven".