83540404 has 6 divisors (see below), whose sum is σ = 146195714. Its totient is φ = 41770200.

The previous prime is 83540351. The next prime is 83540417. The reversal of 83540404 is 40404538.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 15444900 = 8252^2 + 3930^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10442547 + ... + 10442554.

Almost surely, 2^83540404 is an apocalyptic number.

It is an amenable number.

83540404 is a deficient number, since it is larger than the sum of its proper divisors (62655310).

83540404 is a wasteful number, since it uses less digits than its factorization.

83540404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20885105 (or 20885103 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 83540404 is about 9140.0439823887. The cubic root of 83540404 is about 437.1517188987.

The spelling of 83540404 in words is "eighty-three million, five hundred forty thousand, four hundred four".