84072887 has 2 divisors, whose sum is σ = 84072888. Its totient is φ = 84072886.

The previous prime is 84072883. The next prime is 84072959. The reversal of 84072887 is 78827048.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84072887 - 2² = 84072883 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84072881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42036443 + 42036444.

It is an arithmetic number, because the mean of its divisors is an integer number (42036444).

Almost surely, 2^84072887 is an apocalyptic number.

84072887 is a deficient number, since it is larger than the sum of its proper divisors (1).

84072887 is an equidigital number, since it uses as much as digits as its factorization.

84072887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 84072887 is about 9169.1268395633. The cubic root of 84072887 is about 438.0785480085.

The spelling of 84072887 in words is "eighty-four million, seventy-two thousand, eight hundred eighty-seven".