73381047 has 8 divisors (see below), whose sum is σ = 99020544. Its totient is φ = 48331128.

The previous prime is 73381001. The next prime is 73381057. The reversal of 73381047 is 74018337.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73381047 - 2¹⁰ = 73380023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73380999 and 73381017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73381057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147103 + ... + 147600.

It is an arithmetic number, because the mean of its divisors is an integer number (12377568).

Almost surely, 2^73381047 is an apocalyptic number.

73381047 is a deficient number, since it is larger than the sum of its proper divisors (25639497).

73381047 is a wasteful number, since it uses less digits than its factorization.

73381047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294789.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 73381047 is about 8566.2738107067. The cubic root of 73381047 is about 418.6598382554.

It can be divided in two parts, 7338 and 1047, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 73381047 in words is "seventy-three million, three hundred eighty-one thousand, forty-seven".