84087069 has 32 divisors (see below), whose sum is σ = 125220480. Its totient is φ = 49766400.

The previous prime is 84087067. The next prime is 84087079. The reversal of 84087069 is 96078048.

It is a happy number.

It is not a de Polignac number, because 84087069 - 2¹ = 84087067 is a prime.

It is a super-2 number, since 2×84087069² = 14141270346021522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84087069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84087061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348789 + ... + 349029.

It is an arithmetic number, because the mean of its divisors is an integer number (3913140).

Almost surely, 2^84087069 is an apocalyptic number.

It is an amenable number.

84087069 is a deficient number, since it is larger than the sum of its proper divisors (41133411).

84087069 is a wasteful number, since it uses less digits than its factorization.

84087069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 84087069 is about 9169.9001630334. The cubic root of 84087069 is about 438.1031793368.

The spelling of 84087069 in words is "eighty-four million, eighty-seven thousand, sixty-nine".