82212407 has 2 divisors, whose sum is σ = 82212408. Its totient is φ = 82212406.

The previous prime is 82212371. The next prime is 82212433. The reversal of 82212407 is 70421228.

It is an a-pointer prime, because the next prime (82212433) can be obtained adding 82212407 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82212407 - 2⁶ = 82212343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82212497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41106203 + 41106204.

It is an arithmetic number, because the mean of its divisors is an integer number (41106204).

Almost surely, 2^82212407 is an apocalyptic number.

82212407 is a deficient number, since it is larger than the sum of its proper divisors (1).

82212407 is an equidigital number, since it uses as much as digits as its factorization.

82212407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 82212407 is about 9067.1057675534. The cubic root of 82212407 is about 434.8229463979.

The spelling of 82212407 in words is "eighty-two million, two hundred twelve thousand, four hundred seven".