73961863 has 2 divisors, whose sum is σ = 73961864. Its totient is φ = 73961862.

The previous prime is 73961857. The next prime is 73961887. The reversal of 73961863 is 36816937.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73961863 - 2⁹ = 73961351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73911863) 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, 36980931 + 36980932.

It is an arithmetic number, because the mean of its divisors is an integer number (36980932).

Almost surely, 2^73961863 is an apocalyptic number.

73961863 is a deficient number, since it is larger than the sum of its proper divisors (1).

73961863 is an equidigital number, since it uses as much as digits as its factorization.

73961863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 73961863 is about 8600.1083132714. The cubic root of 73961863 is about 419.7615104842.

The spelling of 73961863 in words is "seventy-three million, nine hundred sixty-one thousand, eight hundred sixty-three".