82969187 has 4 divisors (see below), whose sum is σ = 94821936. Its totient is φ = 71116440.

The previous prime is 82969153. The next prime is 82969193. The reversal of 82969187 is 78196928.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82969187 - 2⁸ = 82968931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82969127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5926364 + ... + 5926377.

It is an arithmetic number, because the mean of its divisors is an integer number (23705484).

Almost surely, 2^82969187 is an apocalyptic number.

82969187 is a deficient number, since it is larger than the sum of its proper divisors (11852749).

82969187 is a wasteful number, since it uses less digits than its factorization.

82969187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11852748.

The product of its digits is 435456, while the sum is 50.

The square root of 82969187 is about 9108.7423390938. The cubic root of 82969187 is about 436.1530811536.

The spelling of 82969187 in words is "eighty-two million, nine hundred sixty-nine thousand, one hundred eighty-seven".