83645701 has 6 divisors (see below), whose sum is σ = 85089606. Its totient is φ = 82204200.

The previous prime is 83645677. The next prime is 83645717. The reversal of 83645701 is 10754638.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 34281025 = 7026^2 + 5855^2 .

It is not a de Polignac number, because 83645701 - 2⁹ = 83645189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83645741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70846 + ... + 72016.

It is an arithmetic number, because the mean of its divisors is an integer number (14181601).

Almost surely, 2^83645701 is an apocalyptic number.

It is an amenable number.

83645701 is a deficient number, since it is larger than the sum of its proper divisors (1443905).

83645701 is an frugal number, since it uses more digits than its factorization.

83645701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 83645701 is about 9145.8023704867. The cubic root of 83645701 is about 437.3353084606.

The spelling of 83645701 in words is "eighty-three million, six hundred forty-five thousand, seven hundred one".