83893653 has 6 divisors (see below), whose sum is σ = 121179734. Its totient is φ = 55929096.

The previous prime is 83893613. The next prime is 83893697. The reversal of 83893653 is 35639838.

It can be written as a sum of positive squares in only one way, i.e., 56205009 + 27688644 = 7497^2 + 5262^2 .

It is not a de Polignac number, because 83893653 - 2⁹ = 83893141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83893599 and 83893608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83893613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4660750 + ... + 4660767.

Almost surely, 2^83893653 is an apocalyptic number.

It is an amenable number.

83893653 is a deficient number, since it is larger than the sum of its proper divisors (37286081).

83893653 is a wasteful number, since it uses less digits than its factorization.

83893653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321523 (or 9321520 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 83893653 is about 9159.3478479638. The cubic root of 83893653 is about 437.7670150158.

The spelling of 83893653 in words is "eighty-three million, eight hundred ninety-three thousand, six hundred fifty-three".