83340729 has 12 divisors (see below), whose sum is σ = 122942976. Its totient is φ = 54378072.

The previous prime is 83340727. The next prime is 83340737. The reversal of 83340729 is 92704338.

It is not a de Polignac number, because 83340729 - 2¹ = 83340727 is a prime.

It is a super-2 number, since 2×83340729² = 13891354220502882, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 83340693 and 83340702.

It is not an unprimeable number, because it can be changed into a prime (83340721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98089 + ... + 98934.

It is an arithmetic number, because the mean of its divisors is an integer number (10245248).

Almost surely, 2^83340729 is an apocalyptic number.

It is an amenable number.

83340729 is a deficient number, since it is larger than the sum of its proper divisors (39602247).

83340729 is a wasteful number, since it uses less digits than its factorization.

83340729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197076 (or 197073 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 83340729 is about 9129.1143601118. The cubic root of 83340729 is about 436.8031534058.

The spelling of 83340729 in words is "eighty-three million, three hundred forty thousand, seven hundred twenty-nine".