84657005 has 16 divisors (see below), whose sum is σ = 105510384. Its totient is φ = 65157120.

The previous prime is 84656993. The next prime is 84657019. The reversal of 84657005 is 50075648.

It can be written as a sum of positive squares in 8 ways, for example, as 23222761 + 61434244 = 4819^2 + 7838^2 .

It is not a de Polignac number, because 84657005 - 2⁸ = 84656749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12137 + ... + 17793.

It is an arithmetic number, because the mean of its divisors is an integer number (6594399).

Almost surely, 2^84657005 is an apocalyptic number.

It is an amenable number.

84657005 is a deficient number, since it is larger than the sum of its proper divisors (20853379).

84657005 is a wasteful number, since it uses less digits than its factorization.

84657005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 84657005 is about 9200.9241383678. The cubic root of 84657005 is about 439.0907618616.

The spelling of 84657005 in words is "eighty-four million, six hundred fifty-seven thousand, five".