73433147 has 4 divisors (see below), whose sum is σ = 73504200. Its totient is φ = 73362096.

The previous prime is 73433093. The next prime is 73433153. The reversal of 73433147 is 74133437.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73433147 - 2¹² = 73429051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73433177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33953 + ... + 36050.

It is an arithmetic number, because the mean of its divisors is an integer number (18376050).

Almost surely, 2^73433147 is an apocalyptic number.

73433147 is a deficient number, since it is larger than the sum of its proper divisors (71053).

73433147 is a wasteful number, since it uses less digits than its factorization.

73433147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71052.

The product of its digits is 21168, while the sum is 32.

The square root of 73433147 is about 8569.3142666143. The cubic root of 73433147 is about 418.7588966106.

The spelling of 73433147 in words is "seventy-three million, four hundred thirty-three thousand, one hundred forty-seven".