82739807 has 8 divisors (see below), whose sum is σ = 85226400. Its totient is φ = 80266464.

The previous prime is 82739801. The next prime is 82739821. The reversal of 82739807 is 70893728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82739807 - 2¹² = 82735711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82739801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10169 + ... + 16397.

It is an arithmetic number, because the mean of its divisors is an integer number (10653300).

Almost surely, 2^82739807 is an apocalyptic number.

82739807 is a deficient number, since it is larger than the sum of its proper divisors (2486593).

82739807 is a wasteful number, since it uses less digits than its factorization.

82739807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 82739807 is about 9096.1424241268. The cubic root of 82739807 is about 435.7507746460.

The spelling of 82739807 in words is "eighty-two million, seven hundred thirty-nine thousand, eight hundred seven".