83726129 has 4 divisors (see below), whose sum is σ = 85507584. Its totient is φ = 81944676.

The previous prime is 83726113. The next prime is 83726143. The reversal of 83726129 is 92162738.

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 83726129 - 2⁴ = 83726113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83726092 and 83726101.

It is not an unprimeable number, because it can be changed into a prime (83726189) 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, 890657 + ... + 890750.

It is an arithmetic number, because the mean of its divisors is an integer number (21376896).

Almost surely, 2^83726129 is an apocalyptic number.

It is an amenable number.

83726129 is a deficient number, since it is larger than the sum of its proper divisors (1781455).

83726129 is a wasteful number, since it uses less digits than its factorization.

83726129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781454.

The product of its digits is 36288, while the sum is 38.

The square root of 83726129 is about 9150.1983038621. The cubic root of 83726129 is about 437.4754341581.

The spelling of 83726129 in words is "eighty-three million, seven hundred twenty-six thousand, one hundred twenty-nine".