83961049 has 4 divisors (see below), whose sum is σ = 84073600. Its totient is φ = 83848500.

The previous prime is 83961047. The next prime is 83961067. The reversal of 83961049 is 94016938.

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 not a de Polignac number, because 83961049 - 2¹ = 83961047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83961041) 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, 55149 + ... + 56650.

It is an arithmetic number, because the mean of its divisors is an integer number (21018400).

Almost surely, 2^83961049 is an apocalyptic number.

It is an amenable number.

83961049 is a deficient number, since it is larger than the sum of its proper divisors (112551).

83961049 is a wasteful number, since it uses less digits than its factorization.

83961049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112550.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 83961049 is about 9163.0261922577. The cubic root of 83961049 is about 437.8842104079.

The spelling of 83961049 in words is "eighty-three million, nine hundred sixty-one thousand, forty-nine".