83767161 has 4 divisors (see below), whose sum is σ = 111689552. Its totient is φ = 55844772.

The previous prime is 83767157. The next prime is 83767183. The reversal of 83767161 is 16176738.

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 not a de Polignac number, because 83767161 - 2² = 83767157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83767111) 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, 13961191 + ... + 13961196.

It is an arithmetic number, because the mean of its divisors is an integer number (27922388).

Almost surely, 2^83767161 is an apocalyptic number.

It is an amenable number.

83767161 is a deficient number, since it is larger than the sum of its proper divisors (27922391).

83767161 is a wasteful number, since it uses less digits than its factorization.

83767161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27922390.

The product of its digits is 42336, while the sum is 39.

The square root of 83767161 is about 9152.4401664256. The cubic root of 83767161 is about 437.5468876006.

The spelling of 83767161 in words is "eighty-three million, seven hundred sixty-seven thousand, one hundred sixty-one".