83653257 has 16 divisors (see below), whose sum is σ = 117666560. Its totient is φ = 52717392.

The previous prime is 83653237. The next prime is 83653267. The reversal of 83653257 is 75235638.

It is not a de Polignac number, because 83653257 - 2¹⁴ = 83636873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83653217) 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, 29838 + ... + 32520.

It is an arithmetic number, because the mean of its divisors is an integer number (7354160).

Almost surely, 2^83653257 is an apocalyptic number.

It is an amenable number.

83653257 is a deficient number, since it is larger than the sum of its proper divisors (34013303).

83653257 is a wasteful number, since it uses less digits than its factorization.

83653257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252.

The product of its digits is 151200, while the sum is 39.

The square root of 83653257 is about 9146.2154468392. The cubic root of 83653257 is about 437.3484767249.

The spelling of 83653257 in words is "eighty-three million, six hundred fifty-three thousand, two hundred fifty-seven".