72573619 has 2 divisors, whose sum is σ = 72573620. Its totient is φ = 72573618.

The previous prime is 72573583. The next prime is 72573643. The reversal of 72573619 is 91637527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72573619 - 2⁹ = 72573107 is a prime.

It is a super-2 number, since 2×72573619² = 10533860349514322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72573659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36286809 + 36286810.

It is an arithmetic number, because the mean of its divisors is an integer number (36286810).

Almost surely, 2^72573619 is an apocalyptic number.

72573619 is a deficient number, since it is larger than the sum of its proper divisors (1).

72573619 is an equidigital number, since it uses as much as digits as its factorization.

72573619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 72573619 is about 8519.0151426089. The cubic root of 72573619 is about 417.1186358178.

The spelling of 72573619 in words is "seventy-two million, five hundred seventy-three thousand, six hundred nineteen".