83487081 has 4 divisors (see below), whose sum is σ = 111316112. Its totient is φ = 55658052.

The previous prime is 83487049. The next prime is 83487097. The reversal of 83487081 is 18078438.

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 83487081 - 2⁵ = 83487049 is a prime.

It is a super-2 number, since 2×83487081² = 13940185387801122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83487011) 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, 13914511 + ... + 13914516.

It is an arithmetic number, because the mean of its divisors is an integer number (27829028).

Almost surely, 2^83487081 is an apocalyptic number.

It is an amenable number.

83487081 is a deficient number, since it is larger than the sum of its proper divisors (27829031).

83487081 is a wasteful number, since it uses less digits than its factorization.

83487081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27829030.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 83487081 is about 9137.1265176750. The cubic root of 83487081 is about 437.0586892535.

The spelling of 83487081 in words is "eighty-three million, four hundred eighty-seven thousand, eighty-one".