87469087 has 4 divisors (see below), whose sum is σ = 87537520. Its totient is φ = 87400656.

The previous prime is 87469051. The next prime is 87469117. The reversal of 87469087 is 78096478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87469087 is a prime.

It is a super-2 number, since 2×87469087² = 15301682361227138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87469087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87469387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32262 + ... + 34867.

It is an arithmetic number, because the mean of its divisors is an integer number (21884380).

Almost surely, 2^87469087 is an apocalyptic number.

87469087 is a deficient number, since it is larger than the sum of its proper divisors (68433).

87469087 is a wasteful number, since it uses less digits than its factorization.

87469087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68432.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 87469087 is about 9352.4909516128. The cubic root of 87469087 is about 443.8997132344.

The spelling of 87469087 in words is "eighty-seven million, four hundred sixty-nine thousand, eighty-seven".