68397273 has 24 divisors (see below), whose sum is σ = 119553408. Its totient is φ = 36784512.

The previous prime is 68397269. The next prime is 68397281. The reversal of 68397273 is 37279386.

It is a happy number.

It is not a de Polignac number, because 68397273 - 2² = 68397269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68397223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30861 + ... + 33002.

It is an arithmetic number, because the mean of its divisors is an integer number (4981392).

Almost surely, 2^68397273 is an apocalyptic number.

68397273 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68397273 is a deficient number, since it is larger than the sum of its proper divisors (51156135).

68397273 is a wasteful number, since it uses less digits than its factorization.

68397273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63893 (or 63890 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 68397273 is about 8270.2643851330. The cubic root of 68397273 is about 408.9588355739.

The spelling of 68397273 in words is "sixty-eight million, three hundred ninety-seven thousand, two hundred seventy-three".