72419299 has 4 divisors (see below), whose sum is σ = 72450736. Its totient is φ = 72387864.

The previous prime is 72419297. The next prime is 72419309. The reversal of 72419299 is 99291427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99291427 = 4621 ⋅21487.

It is a cyclic number.

It is not a de Polignac number, because 72419299 - 2¹ = 72419297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72419297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11964 + ... + 16969.

It is an arithmetic number, because the mean of its divisors is an integer number (18112684).

Almost surely, 2^72419299 is an apocalyptic number.

72419299 is a deficient number, since it is larger than the sum of its proper divisors (31437).

72419299 is a wasteful number, since it uses less digits than its factorization.

72419299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31436.

The product of its digits is 81648, while the sum is 43.

The square root of 72419299 is about 8509.9529375902. The cubic root of 72419299 is about 416.8227733642.

The spelling of 72419299 in words is "seventy-two million, four hundred nineteen thousand, two hundred ninety-nine".