73947373 has 8 divisors (see below), whose sum is σ = 77950400. Its totient is φ = 69955488.

The previous prime is 73947353. The next prime is 73947383. The reversal of 73947373 is 37374937.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73947373 is a prime.

It is a super-2 number, since 2×73947373² = 10936427947202258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73947343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13273 + ... + 18001.

It is an arithmetic number, because the mean of its divisors is an integer number (9743800).

Almost surely, 2^73947373 is an apocalyptic number.

It is an amenable number.

73947373 is a deficient number, since it is larger than the sum of its proper divisors (4003027).

73947373 is a wasteful number, since it uses less digits than its factorization.

73947373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571.

The product of its digits is 333396, while the sum is 43.

The square root of 73947373 is about 8599.2658407564. The cubic root of 73947373 is about 419.7340966194.

The spelling of 73947373 in words is "seventy-three million, nine hundred forty-seven thousand, three hundred seventy-three".