82772687 has 8 divisors (see below), whose sum is σ = 84698112. Its totient is φ = 80854200.

The previous prime is 82772681. The next prime is 82772707. The reversal of 82772687 is 78627728.

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 82772687 - 2¹⁸ = 82510543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82772681) 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, 28262 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (10587264).

Almost surely, 2^82772687 is an apocalyptic number.

82772687 is a deficient number, since it is larger than the sum of its proper divisors (1925425).

82772687 is a wasteful number, since it uses less digits than its factorization.

82772687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469.

The product of its digits is 526848, while the sum is 47.

The square root of 82772687 is about 9097.9496041691. The cubic root of 82772687 is about 435.8084880512.

The spelling of 82772687 in words is "eighty-two million, seven hundred seventy-two thousand, six hundred eighty-seven".