83658081 has 32 divisors (see below), whose sum is σ = 124411392. Its totient is φ = 49674240.

The previous prime is 83658059. The next prime is 83658097. The reversal of 83658081 is 18085638.

It is a happy number.

It is not a de Polignac number, because 83658081 - 2⁹ = 83657569 is a prime.

It is a super-2 number, since 2×83658081² = 13997349033205122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (83658031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180456 + ... + 180918.

It is an arithmetic number, because the mean of its divisors is an integer number (3887856).

Almost surely, 2^83658081 is an apocalyptic number.

It is an amenable number.

83658081 is a deficient number, since it is larger than the sum of its proper divisors (40753311).

83658081 is a wasteful number, since it uses less digits than its factorization.

83658081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 83658081 is about 9146.4791586708. The cubic root of 83658081 is about 437.3568833651.

The spelling of 83658081 in words is "eighty-three million, six hundred fifty-eight thousand, eighty-one".