82772389 has 8 divisors (see below), whose sum is σ = 94825088. Its totient is φ = 70776720.

The previous prime is 82772383. The next prime is 82772407. The reversal of 82772389 is 98327728.

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

It is a de Polignac number, because none of the positive numbers 2^k-82772389 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 (82772383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11097 + ... + 16990.

It is an arithmetic number, because the mean of its divisors is an integer number (11853136).

Almost surely, 2^82772389 is an apocalyptic number.

It is an amenable number.

82772389 is a deficient number, since it is larger than the sum of its proper divisors (12052699).

82772389 is a wasteful number, since it uses less digits than its factorization.

82772389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515.

The product of its digits is 338688, while the sum is 46.

The square root of 82772389 is about 9097.9332268378. The cubic root of 82772389 is about 435.8079650482.

The spelling of 82772389 in words is "eighty-two million, seven hundred seventy-two thousand, three hundred eighty-nine".