84969087 has 12 divisors (see below), whose sum is σ = 131789016. Its totient is φ = 48553680.

The previous prime is 84969029. The next prime is 84969103. The reversal of 84969087 is 78096948.

It is a happy number.

It is not a de Polignac number, because 84969087 - 2⁷ = 84968959 is a prime.

It is a super-2 number, since 2×84969087² = 14439491491227138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84969487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288864 + ... + 289157.

It is an arithmetic number, because the mean of its divisors is an integer number (10982418).

Almost surely, 2^84969087 is an apocalyptic number.

84969087 is a deficient number, since it is larger than the sum of its proper divisors (46819929).

84969087 is a wasteful number, since it uses less digits than its factorization.

84969087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578038 (or 578031 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 84969087 is about 9217.8678120268. The cubic root of 84969087 is about 439.6296591075.

The spelling of 84969087 in words is "eighty-four million, nine hundred sixty-nine thousand, eighty-seven".