73421479 has 2 divisors, whose sum is σ = 73421480. Its totient is φ = 73421478.

The previous prime is 73421477. The next prime is 73421489. The reversal of 73421479 is 97412437.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73421479 - 2¹ = 73421477 is a prime.

Together with 73421477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73421471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36710739 + 36710740.

It is an arithmetic number, because the mean of its divisors is an integer number (36710740).

Almost surely, 2^73421479 is an apocalyptic number.

73421479 is a deficient number, since it is larger than the sum of its proper divisors (1).

73421479 is an equidigital number, since it uses as much as digits as its factorization.

73421479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 73421479 is about 8568.6334383027. The cubic root of 73421479 is about 418.7367161747.

The spelling of 73421479 in words is "seventy-three million, four hundred twenty-one thousand, four hundred seventy-nine".