82107029 has 4 divisors (see below), whose sum is σ = 82259340. Its totient is φ = 81954720.

The previous prime is 82107023. The next prime is 82107049. The reversal of 82107029 is 92070128.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60808804 + 21298225 = 7798^2 + 4615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82107029 is a prime.

It is a super-2 number, since 2×82107029² = 13483128422413682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82106992 and 82107010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82107023) 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, 75344 + ... + 76425.

It is an arithmetic number, because the mean of its divisors is an integer number (20564835).

Almost surely, 2^82107029 is an apocalyptic number.

It is an amenable number.

82107029 is a deficient number, since it is larger than the sum of its proper divisors (152311).

82107029 is a wasteful number, since it uses less digits than its factorization.

82107029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152310.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 82107029 is about 9061.2928989190. The cubic root of 82107029 is about 434.6370848984.

The spelling of 82107029 in words is "eighty-two million, one hundred seven thousand, twenty-nine".