22699487 has 2 divisors, whose sum is σ = 22699488. Its totient is φ = 22699486.

The previous prime is 22699451. The next prime is 22699493. The reversal of 22699487 is 78499622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22699487 - 2¹⁰ = 22698463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22699427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11349743 + 11349744.

It is an arithmetic number, because the mean of its divisors is an integer number (11349744).

Almost surely, 2^22699487 is an apocalyptic number.

22699487 is a deficient number, since it is larger than the sum of its proper divisors (1).

22699487 is an equidigital number, since it uses as much as digits as its factorization.

22699487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 22699487 is about 4764.3978633191. The cubic root of 22699487 is about 283.1426858956.

The spelling of 22699487 in words is "twenty-two million, six hundred ninety-nine thousand, four hundred eighty-seven".