73668479 has 2 divisors, whose sum is σ = 73668480. Its totient is φ = 73668478.

The previous prime is 73668451. The next prime is 73668481. The reversal of 73668479 is 97486637.

It is a strong prime.

It is an emirp because it is prime and its reverse (97486637) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73668479 is a prime.

Together with 73668481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73668409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36834239 + 36834240.

It is an arithmetic number, because the mean of its divisors is an integer number (36834240).

Almost surely, 2^73668479 is an apocalyptic number.

73668479 is a deficient number, since it is larger than the sum of its proper divisors (1).

73668479 is an equidigital number, since it uses as much as digits as its factorization.

73668479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 73668479 is about 8583.0343701980. The cubic root of 73668479 is about 419.2057533220.

It can be divided in two parts, 73668 and 479, that added together give a palindrome (74147).

The spelling of 73668479 in words is "seventy-three million, six hundred sixty-eight thousand, four hundred seventy-nine".