73691339 has 2 divisors, whose sum is σ = 73691340. Its totient is φ = 73691338.

The previous prime is 73691323. The next prime is 73691363. The reversal of 73691339 is 93319637.

It is a weak prime.

It is an emirp because it is prime and its reverse (93319637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73691339 - 2⁴ = 73691323 is a prime.

It is a super-2 number, since 2×73691339² = 10860826887225842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73691296 and 73691305.

It is not a weakly prime, because it can be changed into another prime (73691389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36845669 + 36845670.

It is an arithmetic number, because the mean of its divisors is an integer number (36845670).

Almost surely, 2^73691339 is an apocalyptic number.

73691339 is a deficient number, since it is larger than the sum of its proper divisors (1).

73691339 is an equidigital number, since it uses as much as digits as its factorization.

73691339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 41.

The square root of 73691339 is about 8584.3659637739. The cubic root of 73691339 is about 419.2491099588.

The spelling of 73691339 in words is "seventy-three million, six hundred ninety-one thousand, three hundred thirty-nine".