82940219 has 2 divisors, whose sum is σ = 82940220. Its totient is φ = 82940218.

The previous prime is 82940213. The next prime is 82940237. The reversal of 82940219 is 91204928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82940219 - 2²⁰ = 81891643 is a prime.

It is a super-2 number, since 2×82940219² = 13758159855535922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82940213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41470109 + 41470110.

It is an arithmetic number, because the mean of its divisors is an integer number (41470110).

Almost surely, 2^82940219 is an apocalyptic number.

82940219 is a deficient number, since it is larger than the sum of its proper divisors (1).

82940219 is an equidigital number, since it uses as much as digits as its factorization.

82940219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 82940219 is about 9107.1520795472. The cubic root of 82940219 is about 436.1023155076.

The spelling of 82940219 in words is "eighty-two million, nine hundred forty thousand, two hundred nineteen".