68890473 has 8 divisors (see below), whose sum is σ = 102060000. Its totient is φ = 45926964.

The previous prime is 68890441. The next prime is 68890517. The reversal of 68890473 is 37409886.

It is a happy number.

It is not a de Polignac number, because 68890473 - 2⁵ = 68890441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68890403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275723 + ... + 1275776.

It is an arithmetic number, because the mean of its divisors is an integer number (12757500).

Almost surely, 2^68890473 is an apocalyptic number.

It is an amenable number.

68890473 is a deficient number, since it is larger than the sum of its proper divisors (33169527).

68890473 is a wasteful number, since it uses less digits than its factorization.

68890473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551508 (or 2551502 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 68890473 is about 8300.0284939270. The cubic root of 68890473 is about 409.9394576478.

The spelling of 68890473 in words is "sixty-eight million, eight hundred ninety thousand, four hundred seventy-three".