83894657 has 16 divisors (see below), whose sum is σ = 105864192. Its totient is φ = 64579920.

The previous prime is 83894641. The next prime is 83894659. The reversal of 83894657 is 75649838.

It is a cyclic number.

It is not a de Polignac number, because 83894657 - 2⁴ = 83894641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83894659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (6616512).

Almost surely, 2^83894657 is an apocalyptic number.

It is an amenable number.

83894657 is a deficient number, since it is larger than the sum of its proper divisors (21969535).

83894657 is a wasteful number, since it uses less digits than its factorization.

83894657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13228.

The product of its digits is 1451520, while the sum is 50.

The square root of 83894657 is about 9159.4026551954. The cubic root of 83894657 is about 437.7687613392.

The spelling of 83894657 in words is "eighty-three million, eight hundred ninety-four thousand, six hundred fifty-seven".