73812047 has 6 divisors (see below), whose sum is σ = 76445928. Its totient is φ = 71265992.

The previous prime is 73812041. The next prime is 73812071. The reversal of 73812047 is 74021837.

It is a happy number.

It is not a de Polignac number, because 73812047 - 2⁴ = 73812031 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 (73812041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43043 + ... + 44724.

It is an arithmetic number, because the mean of its divisors is an integer number (12740988).

Almost surely, 2^73812047 is an apocalyptic number.

73812047 is a deficient number, since it is larger than the sum of its proper divisors (2633881).

73812047 is an equidigital number, since it uses as much as digits as its factorization.

73812047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87825 (or 87796 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 73812047 is about 8591.3937751683. The cubic root of 73812047 is about 419.4778981074.

The spelling of 73812047 in words is "seventy-three million, eight hundred twelve thousand, forty-seven".