84399755 has 32 divisors (see below), whose sum is σ = 114352128. Its totient is φ = 59270400.

The previous prime is 84399751. The next prime is 84399761. The reversal of 84399755 is 55799348.

It is not a de Polignac number, because 84399755 - 2² = 84399751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84399751) 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, 300215 + ... + 300495.

It is an arithmetic number, because the mean of its divisors is an integer number (3573504).

Almost surely, 2^84399755 is an apocalyptic number.

84399755 is a deficient number, since it is larger than the sum of its proper divisors (29952373).

84399755 is a wasteful number, since it uses less digits than its factorization.

84399755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467.

The product of its digits is 1360800, while the sum is 50.

The square root of 84399755 is about 9186.9339281395. The cubic root of 84399755 is about 438.6455507949.

The spelling of 84399755 in words is "eighty-four million, three hundred ninety-nine thousand, seven hundred fifty-five".