83738121 has 4 divisors (see below), whose sum is σ = 111650832. Its totient is φ = 55825412.

The previous prime is 83738089. The next prime is 83738129. The reversal of 83738121 is 12183738.

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 a cyclic number.

It is not a de Polignac number, because 83738121 - 2⁵ = 83738089 is a prime.

It is a super-2 number, since 2×83738121² = 14024145817221282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83738129) 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, 13956351 + ... + 13956356.

It is an arithmetic number, because the mean of its divisors is an integer number (27912708).

Almost surely, 2^83738121 is an apocalyptic number.

It is an amenable number.

83738121 is a deficient number, since it is larger than the sum of its proper divisors (27912711).

83738121 is a wasteful number, since it uses less digits than its factorization.

83738121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27912710.

The product of its digits is 8064, while the sum is 33.

The square root of 83738121 is about 9150.8535667445. The cubic root of 83738121 is about 437.4963195337.

The spelling of 83738121 in words is "eighty-three million, seven hundred thirty-eight thousand, one hundred twenty-one".