73944971 has 2 divisors, whose sum is σ = 73944972. Its totient is φ = 73944970.

The previous prime is 73944967. The next prime is 73944991. The reversal of 73944971 is 17944937.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17944937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73944971 - 2² = 73944967 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73944961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36972485 + 36972486.

It is an arithmetic number, because the mean of its divisors is an integer number (36972486).

Almost surely, 2^73944971 is an apocalyptic number.

73944971 is a deficient number, since it is larger than the sum of its proper divisors (1).

73944971 is an equidigital number, since it uses as much as digits as its factorization.

73944971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 73944971 is about 8599.1261765368. The cubic root of 73944971 is about 419.7295518908.

The spelling of 73944971 in words is "seventy-three million, nine hundred forty-four thousand, nine hundred seventy-one".