72694319 has 2 divisors, whose sum is σ = 72694320. Its totient is φ = 72694318.

The previous prime is 72694309. The next prime is 72694327. The reversal of 72694319 is 91349627.

It is a strong prime.

It is an emirp because it is prime and its reverse (91349627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72694319 - 2¹⁶ = 72628783 is a prime.

It is a super-2 number, since 2×72694319² = 10568928029747522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72694309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36347159 + 36347160.

It is an arithmetic number, because the mean of its divisors is an integer number (36347160).

Almost surely, 2^72694319 is an apocalyptic number.

72694319 is a deficient number, since it is larger than the sum of its proper divisors (1).

72694319 is an equidigital number, since it uses as much as digits as its factorization.

72694319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 72694319 is about 8526.0963517896. The cubic root of 72694319 is about 417.3497497997.

The spelling of 72694319 in words is "seventy-two million, six hundred ninety-four thousand, three hundred nineteen".