83669121 has 24 divisors (see below), whose sum is σ = 128348064. Its totient is φ = 52341120.

The previous prime is 83669083. The next prime is 83669123. The reversal of 83669121 is 12196638.

It is not a de Polignac number, because 83669121 - 2⁷ = 83668993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83669123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70866 + ... + 72036.

It is an arithmetic number, because the mean of its divisors is an integer number (5347836).

Almost surely, 2^83669121 is an apocalyptic number.

It is an amenable number.

83669121 is a deficient number, since it is larger than the sum of its proper divisors (44678943).

83669121 is a wasteful number, since it uses less digits than its factorization.

83669121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1658 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 83669121 is about 9147.0826496758. The cubic root of 83669121 is about 437.3761212262.

The spelling of 83669121 in words is "eighty-three million, six hundred sixty-nine thousand, one hundred twenty-one".