69890087 has 8 divisors (see below), whose sum is σ = 72575040. Its totient is φ = 67223520.

The previous prime is 69890071. The next prime is 69890099. The reversal of 69890087 is 78009896.

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 69890087 - 2⁴ = 69890071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69890017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3413 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (9071880).

Almost surely, 2^69890087 is an apocalyptic number.

69890087 is a deficient number, since it is larger than the sum of its proper divisors (2684953).

69890087 is a wasteful number, since it uses less digits than its factorization.

69890087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 69890087 is about 8360.0291267435. The cubic root of 69890087 is about 411.9127108726.

The spelling of 69890087 in words is "sixty-nine million, eight hundred ninety thousand, eighty-seven".