83881797 has 4 divisors (see below), whose sum is σ = 111842400. Its totient is φ = 55921196.

The previous prime is 83881781. The next prime is 83881799. The reversal of 83881797 is 79718838.

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 83881797 - 2⁴ = 83881781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83881799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13980297 + ... + 13980302.

It is an arithmetic number, because the mean of its divisors is an integer number (27960600).

Almost surely, 2^83881797 is an apocalyptic number.

It is an amenable number.

83881797 is a deficient number, since it is larger than the sum of its proper divisors (27960603).

83881797 is a wasteful number, since it uses less digits than its factorization.

83881797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27960602.

The product of its digits is 677376, while the sum is 51.

The square root of 83881797 is about 9158.7006174457. The cubic root of 83881797 is about 437.7463920404.

The spelling of 83881797 in words is "eighty-three million, eight hundred eighty-one thousand, seven hundred ninety-seven".