83881711 has 4 divisors (see below), whose sum is σ = 83910424. Its totient is φ = 83853000.

The previous prime is 83881697. The next prime is 83881739. The reversal of 83881711 is 11718838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83881711 - 2⁹ = 83881199 is a prime.

It is a super-2 number, since 2×83881711² = 14072282880575042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83881741) 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, 9405 + ... + 16006.

It is an arithmetic number, because the mean of its divisors is an integer number (20977606).

Almost surely, 2^83881711 is an apocalyptic number.

83881711 is a deficient number, since it is larger than the sum of its proper divisors (28713).

83881711 is a wasteful number, since it uses less digits than its factorization.

83881711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28712.

The product of its digits is 10752, while the sum is 37.

The square root of 83881711 is about 9158.6959224553. The cubic root of 83881711 is about 437.7462424402.

The spelling of 83881711 in words is "eighty-three million, eight hundred eighty-one thousand, seven hundred eleven".