73047816 has 48 divisors (see below), whose sum is σ = 206444160. Its totient is φ = 23290080.

The previous prime is 73047803. The next prime is 73047817. The reversal of 73047816 is 61874037.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73047817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20400 + ... + 23711.

It is an arithmetic number, because the mean of its divisors is an integer number (4300920).

Almost surely, 2^73047816 is an apocalyptic number.

It is an amenable number.

73047816 is an abundant number, since it is smaller than the sum of its proper divisors (133396344).

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

73047816 is a wasteful number, since it uses less digits than its factorization.

73047816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44146 (or 44139 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 73047816 is about 8546.8015069966. The cubic root of 73047816 is about 418.0251505360.

The spelling of 73047816 in words is "seventy-three million, forty-seven thousand, eight hundred sixteen".