73870785 has 48 divisors (see below), whose sum is σ = 133957824. Its totient is φ = 39051072.

The previous prime is 73870781. The next prime is 73870787. The reversal of 73870785 is 58707837.

It is not a de Polignac number, because 73870785 - 2² = 73870781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 73870785.

It is not an unprimeable number, because it can be changed into a prime (73870781) 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 in 47 ways as a sum of consecutive naturals, for example, 197859 + ... + 198231.

It is an arithmetic number, because the mean of its divisors is an integer number (2790788).

Almost surely, 2^73870785 is an apocalyptic number.

It is an amenable number.

73870785 is a deficient number, since it is larger than the sum of its proper divisors (60087039).

73870785 is a wasteful number, since it uses less digits than its factorization.

73870785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 73870785 is about 8594.8115162579. The cubic root of 73870785 is about 419.5891390266.

The spelling of 73870785 in words is "seventy-three million, eight hundred seventy thousand, seven hundred eighty-five".