73764891 has 16 divisors (see below), whose sum is σ = 110512800. Its totient is φ = 48622464.

The previous prime is 73764869. The next prime is 73764959. The reversal of 73764891 is 19846737.

It is not a de Polignac number, because 73764891 - 2¹⁹ = 73240603 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (73764851) 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 in 15 ways as a sum of consecutive naturals, for example, 12946 + ... + 17751.

It is an arithmetic number, because the mean of its divisors is an integer number (6907050).

Almost surely, 2^73764891 is an apocalyptic number.

73764891 is a deficient number, since it is larger than the sum of its proper divisors (36747909).

73764891 is a wasteful number, since it uses less digits than its factorization.

73764891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30795 (or 30789 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 73764891 is about 8588.6489624387. The cubic root of 73764891 is about 419.3885490354.

The spelling of 73764891 in words is "seventy-three million, seven hundred sixty-four thousand, eight hundred ninety-one".