73897555 has 16 divisors (see below), whose sum is σ = 98837280. Its totient is φ = 52710912.

The previous prime is 73897553. The next prime is 73897561. The reversal of 73897555 is 55579837.

It is a cyclic number.

It is not a de Polignac number, because 73897555 - 2¹ = 73897553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73897499 and 73897508.

It is not an unprimeable number, because it can be changed into a prime (73897553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21264 + ... + 24493.

It is an arithmetic number, because the mean of its divisors is an integer number (6177330).

Almost surely, 2^73897555 is an apocalyptic number.

73897555 is a deficient number, since it is larger than the sum of its proper divisors (24939725).

73897555 is a wasteful number, since it uses less digits than its factorization.

73897555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45798.

The product of its digits is 1323000, while the sum is 49.

The square root of 73897555 is about 8596.3687101008. The cubic root of 73897555 is about 419.6398178107.

The spelling of 73897555 in words is "seventy-three million, eight hundred ninety-seven thousand, five hundred fifty-five".