19242667 has 2 divisors, whose sum is σ = 19242668. Its totient is φ = 19242666.

The previous prime is 19242593. The next prime is 19242709. The reversal of 19242667 is 76624291.

It is a strong prime.

It is an emirp because it is prime and its reverse (76624291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19242667 - 2⁷ = 19242539 is a prime.

It is not a weakly prime, because it can be changed into another prime (19242367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9621333 + 9621334.

It is an arithmetic number, because the mean of its divisors is an integer number (9621334).

Almost surely, 2^19242667 is an apocalyptic number.

19242667 is a deficient number, since it is larger than the sum of its proper divisors (1).

19242667 is an equidigital number, since it uses as much as digits as its factorization.

19242667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 19242667 is about 4386.6464411894. The cubic root of 19242667 is about 267.9713853387.

The spelling of 19242667 in words is "nineteen million, two hundred forty-two thousand, six hundred sixty-seven".