73278896 has 20 divisors (see below), whose sum is σ = 149451000. Its totient is φ = 34710912.

The previous prime is 73278893. The next prime is 73278929. The reversal of 73278896 is 69887237.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73278893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120221 + ... + 120828.

It is an arithmetic number, because the mean of its divisors is an integer number (7472550).

Almost surely, 2^73278896 is an apocalyptic number.

73278896 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

73278896 is an abundant number, since it is smaller than the sum of its proper divisors (76172104).

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

73278896 is a wasteful number, since it uses less digits than its factorization.

73278896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241076 (or 241070 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 73278896 is about 8560.3093402049. The cubic root of 73278896 is about 418.4654811618.

The spelling of 73278896 in words is "seventy-three million, two hundred seventy-eight thousand, eight hundred ninety-six".