73969871 has 2 divisors, whose sum is σ = 73969872. Its totient is φ = 73969870.

The previous prime is 73969829. The next prime is 73969879. The reversal of 73969871 is 17896937.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73969871 - 2¹⁰ = 73968847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73969879) 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, 36984935 + 36984936.

It is an arithmetic number, because the mean of its divisors is an integer number (36984936).

Almost surely, 2^73969871 is an apocalyptic number.

73969871 is a deficient number, since it is larger than the sum of its proper divisors (1).

73969871 is an equidigital number, since it uses as much as digits as its factorization.

73969871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 50.

The square root of 73969871 is about 8600.5738762015. The cubic root of 73969871 is about 419.7766594124.

The spelling of 73969871 in words is "seventy-three million, nine hundred sixty-nine thousand, eight hundred seventy-one".