83775641 has 4 divisors (see below), whose sum is σ = 84071952. Its totient is φ = 83479332.

The previous prime is 83775623. The next prime is 83775647. The reversal of 83775641 is 14657738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83775641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83775647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147731 + ... + 148296.

It is an arithmetic number, because the mean of its divisors is an integer number (21017988).

Almost surely, 2^83775641 is an apocalyptic number.

It is an amenable number.

83775641 is a deficient number, since it is larger than the sum of its proper divisors (296311).

83775641 is a wasteful number, since it uses less digits than its factorization.

83775641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296310.

The product of its digits is 141120, while the sum is 41.

The square root of 83775641 is about 9152.9034191343. The cubic root of 83775641 is about 437.5616518287.

The spelling of 83775641 in words is "eighty-three million, seven hundred seventy-five thousand, six hundred forty-one".