73164947 has 8 divisors (see below), whose sum is σ = 76742976. Its totient is φ = 69671232.

The previous prime is 73164943. The next prime is 73164979. The reversal of 73164947 is 74946137.

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

It is a cyclic number.

It is not a de Polignac number, because 73164947 - 2² = 73164943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73164943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19298 + ... + 22775.

It is an arithmetic number, because the mean of its divisors is an integer number (9592872).

Almost surely, 2^73164947 is an apocalyptic number.

73164947 is a deficient number, since it is larger than the sum of its proper divisors (3578029).

73164947 is a wasteful number, since it uses less digits than its factorization.

73164947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42157.

The product of its digits is 127008, while the sum is 41.

The square root of 73164947 is about 8553.6510917853. The cubic root of 73164947 is about 418.2484634245.

The spelling of 73164947 in words is "seventy-three million, one hundred sixty-four thousand, nine hundred forty-seven".