72673319 has 2 divisors, whose sum is σ = 72673320. Its totient is φ = 72673318.

The previous prime is 72673303. The next prime is 72673339. The reversal of 72673319 is 91337627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72673319 - 2⁴ = 72673303 is a prime.

It is a super-2 number, since 2×72673319² = 10562822588951522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72673339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336659 + 36336660.

It is an arithmetic number, because the mean of its divisors is an integer number (36336660).

Almost surely, 2^72673319 is an apocalyptic number.

72673319 is a deficient number, since it is larger than the sum of its proper divisors (1).

72673319 is an equidigital number, since it uses as much as digits as its factorization.

72673319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 72673319 is about 8524.8647496603. The cubic root of 72673319 is about 417.3095578060.

The spelling of 72673319 in words is "seventy-two million, six hundred seventy-three thousand, three hundred nineteen".