83653601 has 2 divisors, whose sum is σ = 83653602. Its totient is φ = 83653600.

The previous prime is 83653597. The next prime is 83653621. The reversal of 83653601 is 10635638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 13512976 = 8375^2 + 3676^2 .

It is a cyclic number.

It is not a de Polignac number, because 83653601 - 2² = 83653597 is a prime.

It is not a weakly prime, because it can be changed into another prime (83653621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41826800 + 41826801.

It is an arithmetic number, because the mean of its divisors is an integer number (41826801).

Almost surely, 2^83653601 is an apocalyptic number.

It is an amenable number.

83653601 is a deficient number, since it is larger than the sum of its proper divisors (1).

83653601 is an equidigital number, since it uses as much as digits as its factorization.

83653601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 83653601 is about 9146.2342524123. The cubic root of 83653601 is about 437.3490762141.

The spelling of 83653601 in words is "eighty-three million, six hundred fifty-three thousand, six hundred one".