84072807 has 24 divisors (see below), whose sum is σ = 149464224. Its totient is φ = 44345664.

The previous prime is 84072799. The next prime is 84072809. The reversal of 84072807 is 70827048.

It is not a de Polignac number, because 84072807 - 2³ = 84072799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84072809) 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 23 ways as a sum of consecutive naturals, for example, 50508 + ... + 52145.

It is an arithmetic number, because the mean of its divisors is an integer number (6227676).

Almost surely, 2^84072807 is an apocalyptic number.

84072807 is a deficient number, since it is larger than the sum of its proper divisors (65391417).

84072807 is a wasteful number, since it uses less digits than its factorization.

84072807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102679 (or 102676 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 84072807 is about 9169.1224770967. The cubic root of 84072807 is about 438.0784090564.

The spelling of 84072807 in words is "eighty-four million, seventy-two thousand, eight hundred seven".