22422487 has 2 divisors, whose sum is σ = 22422488. Its totient is φ = 22422486.

The previous prime is 22422467. The next prime is 22422503. The reversal of 22422487 is 78422422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22422487 - 2¹¹ = 22420439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22422437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211243 + 11211244.

It is an arithmetic number, because the mean of its divisors is an integer number (11211244).

Almost surely, 2^22422487 is an apocalyptic number.

22422487 is a deficient number, since it is larger than the sum of its proper divisors (1).

22422487 is an equidigital number, since it uses as much as digits as its factorization.

22422487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 31.

The square root of 22422487 is about 4735.2388535321. The cubic root of 22422487 is about 281.9862466676.

The spelling of 22422487 in words is "twenty-two million, four hundred twenty-two thousand, four hundred eighty-seven".