73813668 has 24 divisors (see below), whose sum is σ = 176887872. Its totient is φ = 23939424.

The previous prime is 73813639. The next prime is 73813679. The reversal of 73813668 is 86631837.

It is a super-2 number, since 2×73813668² = 10896915167228448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82680 + ... + 83567.

It is an arithmetic number, because the mean of its divisors is an integer number (7370328).

Almost surely, 2^73813668 is an apocalyptic number.

It is an amenable number.

73813668 is an abundant number, since it is smaller than the sum of its proper divisors (103074204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73813668 is a wasteful number, since it uses less digits than its factorization.

73813668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166291 (or 166289 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 73813668 is about 8591.4881132432. The cubic root of 73813668 is about 419.4809688288.

The spelling of 73813668 in words is "seventy-three million, eight hundred thirteen thousand, six hundred sixty-eight".