73640855 has 16 divisors (see below), whose sum is σ = 93783744. Its totient is φ = 55319040.

The previous prime is 73640851. The next prime is 73640873. The reversal of 73640855 is 55804637.

It is not a de Polignac number, because 73640855 - 2² = 73640851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73640851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52949 + ... + 54321.

It is an arithmetic number, because the mean of its divisors is an integer number (5861484).

Almost surely, 2^73640855 is an apocalyptic number.

73640855 is a deficient number, since it is larger than the sum of its proper divisors (20142889).

73640855 is a wasteful number, since it uses less digits than its factorization.

73640855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 73640855 is about 8581.4249982156. The cubic root of 73640855 is about 419.1533492381.

The spelling of 73640855 in words is "seventy-three million, six hundred forty thousand, eight hundred fifty-five".