72242899 has 2 divisors, whose sum is σ = 72242900. Its totient is φ = 72242898.

The previous prime is 72242873. The next prime is 72242903. The reversal of 72242899 is 99824227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72242899 - 2⁵ = 72242867 is a prime.

It is a zygodrome in base 6.

It is not a weakly prime, because it can be changed into another prime (72242099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36121449 + 36121450.

It is an arithmetic number, because the mean of its divisors is an integer number (36121450).

Almost surely, 2^72242899 is an apocalyptic number.

72242899 is a deficient number, since it is larger than the sum of its proper divisors (1).

72242899 is an equidigital number, since it uses as much as digits as its factorization.

72242899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 72242899 is about 8499.5822838537. The cubic root of 72242899 is about 416.4840638444.

The spelling of 72242899 in words is "seventy-two million, two hundred forty-two thousand, eight hundred ninety-nine".