83651801 has 6 divisors (see below), whose sum is σ = 85049406. Its totient is φ = 82276800.

The previous prime is 83651779. The next prime is 83651807. The reversal of 83651801 is 10815638.

It can be written as a sum of positive squares in 3 ways, for example, as 19571776 + 64080025 = 4424^2 + 8005^2 .

It is not a de Polignac number, because 83651801 - 2¹⁴ = 83635417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83651807) 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, 7520 + ... + 14961.

It is an arithmetic number, because the mean of its divisors is an integer number (14174901).

Almost surely, 2^83651801 is an apocalyptic number.

It is an amenable number.

83651801 is a deficient number, since it is larger than the sum of its proper divisors (1397605).

83651801 is an equidigital number, since it uses as much as digits as its factorization.

83651801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22603 (or 22542 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 83651801 is about 9146.1358507295. The cubic root of 83651801 is about 437.3459393339.

The spelling of 83651801 in words is "eighty-three million, six hundred fifty-one thousand, eight hundred one".