72357919 has 2 divisors, whose sum is σ = 72357920. Its totient is φ = 72357918.

The previous prime is 72357911. The next prime is 72357953. The reversal of 72357919 is 91975327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72357919 - 2³ = 72357911 is a prime.

It is a super-2 number, since 2×72357919² = 10471336884021122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72357911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36178959 + 36178960.

It is an arithmetic number, because the mean of its divisors is an integer number (36178960).

Almost surely, 2^72357919 is an apocalyptic number.

72357919 is a deficient number, since it is larger than the sum of its proper divisors (1).

72357919 is an equidigital number, since it uses as much as digits as its factorization.

72357919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 43.

The square root of 72357919 is about 8506.3458076897. The cubic root of 72357919 is about 416.7049787349.

The spelling of 72357919 in words is "seventy-two million, three hundred fifty-seven thousand, nine hundred nineteen".