73497947 has 8 divisors (see below), whose sum is σ = 79458000. Its totient is φ = 67747104.

The previous prime is 73497923. The next prime is 73497959. The reversal of 73497947 is 74979437.

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 73497947 - 2¹² = 73493851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73497895 and 73497904.

It is not an unprimeable number, because it can be changed into a prime (73497917) 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, 51572 + ... + 52977.

It is an arithmetic number, because the mean of its divisors is an integer number (9932250).

Almost surely, 2^73497947 is an apocalyptic number.

73497947 is a deficient number, since it is larger than the sum of its proper divisors (5960053).

73497947 is a wasteful number, since it uses less digits than its factorization.

73497947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104605.

The product of its digits is 1333584, while the sum is 50.

The square root of 73497947 is about 8573.0943655135. The cubic root of 73497947 is about 418.8820362722.

The spelling of 73497947 in words is "seventy-three million, four hundred ninety-seven thousand, nine hundred forty-seven".