82919249 has 16 divisors (see below), whose sum is σ = 101452800. Its totient is φ = 66185424.

The previous prime is 82919219. The next prime is 82919279. The reversal of 82919249 is 94291928.

It is an interprime number because it is at equal distance from previous prime (82919219) and next prime (82919279).

It is a cyclic number.

It is not a de Polignac number, because 82919249 - 2⁸ = 82918993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82919219) 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, 2564 + ... + 13130.

It is an arithmetic number, because the mean of its divisors is an integer number (6340800).

Almost surely, 2^82919249 is an apocalyptic number.

It is an amenable number.

82919249 is a deficient number, since it is larger than the sum of its proper divisors (18533551).

82919249 is a wasteful number, since it uses less digits than its factorization.

82919249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652.

The product of its digits is 93312, while the sum is 44.

The square root of 82919249 is about 9106.0007138150. Note that the first 3 decimals coincide. The cubic root of 82919249 is about 436.0655587668.

The spelling of 82919249 in words is "eighty-two million, nine hundred nineteen thousand, two hundred forty-nine".