73047736 has 8 divisors (see below), whose sum is σ = 136964520. Its totient is φ = 36523864.

The previous prime is 73047707. The next prime is 73047739. The reversal of 73047736 is 63774037.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 73047695 and 73047704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73047739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4565476 + ... + 4565491.

It is an arithmetic number, because the mean of its divisors is an integer number (17120565).

Almost surely, 2^73047736 is an apocalyptic number.

It is an amenable number.

73047736 is a deficient number, since it is larger than the sum of its proper divisors (63916784).

73047736 is a wasteful number, since it uses less digits than its factorization.

73047736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9130973 (or 9130969 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 73047736 is about 8546.7968268820. The cubic root of 73047736 is about 418.0249979327.

The spelling of 73047736 in words is "seventy-three million, forty-seven thousand, seven hundred thirty-six".