82439101 has 4 divisors (see below), whose sum is σ = 82460704. Its totient is φ = 82417500.

The previous prime is 82439099. The next prime is 82439117. The reversal of 82439101 is 10193428.

It is a happy number.

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 82439101 - 2¹ = 82439099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82439101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82439131) 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, 3375 + ... + 13276.

It is an arithmetic number, because the mean of its divisors is an integer number (20615176).

Almost surely, 2^82439101 is an apocalyptic number.

It is an amenable number.

82439101 is a deficient number, since it is larger than the sum of its proper divisors (21603).

82439101 is a wasteful number, since it uses less digits than its factorization.

82439101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21602.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 82439101 is about 9079.5980637912. The cubic root of 82439101 is about 435.2222425381. Note that the first 4 decimals are identical.

The spelling of 82439101 in words is "eighty-two million, four hundred thirty-nine thousand, one hundred one".