73885720 has 16 divisors (see below), whose sum is σ = 166242960. Its totient is φ = 29554272.

The previous prime is 73885717. The next prime is 73885727. The reversal of 73885720 is 2758837.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1847143 = 73885720 / (7 + 3 + 8 + 8 + 5 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73885727) 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 3 ways as a sum of consecutive naturals, for example, 923532 + ... + 923611.

It is an arithmetic number, because the mean of its divisors is an integer number (10390185).

Almost surely, 2^73885720 is an apocalyptic number.

It is an amenable number.

73885720 is an abundant number, since it is smaller than the sum of its proper divisors (92357240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73885720 is a wasteful number, since it uses less digits than its factorization.

73885720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847154 (or 1847150 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 73885720 is about 8595.6803104815. The cubic root of 73885720 is about 419.6174142620.

The spelling of 73885720 in words is "seventy-three million, eight hundred eighty-five thousand, seven hundred twenty".