81874083 has 16 divisors (see below), whose sum is σ = 110702592. Its totient is φ = 53820000.

The previous prime is 81874073. The next prime is 81874109. The reversal of 81874083 is 38047818.

It is not a de Polignac number, because 81874083 - 2⁶ = 81874019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81874073) 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, 70558 + ... + 71708.

It is an arithmetic number, because the mean of its divisors is an integer number (6918912).

Almost surely, 2^81874083 is an apocalyptic number.

81874083 is a deficient number, since it is larger than the sum of its proper divisors (28828509).

81874083 is a wasteful number, since it uses less digits than its factorization.

81874083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466.

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

The square root of 81874083 is about 9048.4298637940. The cubic root of 81874083 is about 434.2256590146.

The spelling of 81874083 in words is "eighty-one million, eight hundred seventy-four thousand, eighty-three".