73897556 has 24 divisors (see below), whose sum is σ = 132210624. Its totient is φ = 36132480.

The previous prime is 73897553. The next prime is 73897561. The reversal of 73897556 is 65579837.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73897553) 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, 33116 + ... + 35276.

It is an arithmetic number, because the mean of its divisors is an integer number (5508776).

Almost surely, 2^73897556 is an apocalyptic number.

It is an amenable number.

73897556 is a deficient number, since it is larger than the sum of its proper divisors (58313068).

73897556 is a wasteful number, since it uses less digits than its factorization.

73897556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2349 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The square root of 73897556 is about 8596.3687682649. The cubic root of 73897556 is about 419.6398197036.

The spelling of 73897556 in words is "seventy-three million, eight hundred ninety-seven thousand, five hundred fifty-six".