72472619 has 2 divisors, whose sum is σ = 72472620. Its totient is φ = 72472618.

The previous prime is 72472597. The next prime is 72472639. The reversal of 72472619 is 91627427.

It is a strong prime.

It is an emirp because it is prime and its reverse (91627427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72472619 - 2¹² = 72468523 is a prime.

It is a super-2 number, since 2×72472619² = 10504561009438322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72472639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36236309 + 36236310.

It is an arithmetic number, because the mean of its divisors is an integer number (36236310).

Almost surely, 2^72472619 is an apocalyptic number.

72472619 is a deficient number, since it is larger than the sum of its proper divisors (1).

72472619 is an equidigital number, since it uses as much as digits as its factorization.

72472619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 72472619 is about 8513.0851634410. The cubic root of 72472619 is about 416.9250460009.

The spelling of 72472619 in words is "seventy-two million, four hundred seventy-two thousand, six hundred nineteen".