73997459 has 2 divisors, whose sum is σ = 73997460. Its totient is φ = 73997458.

The previous prime is 73997431. The next prime is 73997461. The reversal of 73997459 is 95479937.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73997459 - 2¹² = 73993363 is a prime.

Together with 73997461, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73997459.

It is not a weakly prime, because it can be changed into another prime (73997159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36998729 + 36998730.

It is an arithmetic number, because the mean of its divisors is an integer number (36998730).

Almost surely, 2^73997459 is an apocalyptic number.

73997459 is a deficient number, since it is larger than the sum of its proper divisors (1).

73997459 is an equidigital number, since it uses as much as digits as its factorization.

73997459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 53.

The square root of 73997459 is about 8602.1775731497. The cubic root of 73997459 is about 419.8288399326.

The spelling of 73997459 in words is "seventy-three million, nine hundred ninety-seven thousand, four hundred fifty-nine".