83766081 has 16 divisors (see below), whose sum is σ = 128386944. Its totient is φ = 47587584.

The previous prime is 83766049. The next prime is 83766091. The reversal of 83766081 is 18066738.

It is not a de Polignac number, because 83766081 - 2⁵ = 83766049 is a prime.

It is a super-2 number, since 2×83766081² = 14033512652197122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83766091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7896 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (8024184).

Almost surely, 2^83766081 is an apocalyptic number.

It is an amenable number.

83766081 is a deficient number, since it is larger than the sum of its proper divisors (44620863).

83766081 is a wasteful number, since it uses less digits than its factorization.

83766081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23240.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 83766081 is about 9152.3811655765. The cubic root of 83766081 is about 437.5450071793.

The spelling of 83766081 in words is "eighty-three million, seven hundred sixty-six thousand, eighty-one".