82769187 has 16 divisors (see below), whose sum is σ = 117906560. Its totient is φ = 51492672.

The previous prime is 82769179. The next prime is 82769231. The reversal of 82769187 is 78196728.

It is not a de Polignac number, because 82769187 - 2³ = 82769179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82769117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7018 + ... + 14655.

It is an arithmetic number, because the mean of its divisors is an integer number (7369160).

Almost surely, 2^82769187 is an apocalyptic number.

82769187 is a deficient number, since it is larger than the sum of its proper divisors (35137373).

82769187 is a wasteful number, since it uses less digits than its factorization.

82769187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21762.

The product of its digits is 338688, while the sum is 48.

The square root of 82769187 is about 9097.7572511032. The cubic root of 82769187 is about 435.8023453196.

The spelling of 82769187 in words is "eighty-two million, seven hundred sixty-nine thousand, one hundred eighty-seven".