82954209 has 16 divisors (see below), whose sum is σ = 125384000. Its totient is φ = 48361536.

The previous prime is 82954189. The next prime is 82954217. The reversal of 82954209 is 90245928.

It is not a de Polignac number, because 82954209 - 2⁹ = 82953697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82954219) 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, 55234 + ... + 56715.

It is an arithmetic number, because the mean of its divisors is an integer number (7836500).

Almost surely, 2^82954209 is an apocalyptic number.

It is an amenable number.

82954209 is a deficient number, since it is larger than the sum of its proper divisors (42429791).

82954209 is a wasteful number, since it uses less digits than its factorization.

82954209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111984.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 82954209 is about 9107.9201248144. The cubic root of 82954209 is about 436.1268340844.

The spelling of 82954209 in words is "eighty-two million, nine hundred fifty-four thousand, two hundred nine".