83800690 has 16 divisors (see below), whose sum is σ = 151246080. Its totient is φ = 33430320.

The previous prime is 83800669. The next prime is 83800693. The reversal of 83800690 is 9600838.

It is a super-2 number, since 2×83800690² = 14045111288952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83800693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7266 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (9452880).

Almost surely, 2^83800690 is an apocalyptic number.

83800690 is a deficient number, since it is larger than the sum of its proper divisors (67445390).

83800690 is a wasteful number, since it uses less digits than its factorization.

83800690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22497.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 83800690 is about 9154.2716804779. The cubic root of 83800690 is about 437.6052579393.

The spelling of 83800690 in words is "eighty-three million, eight hundred thousand, six hundred ninety".