68457573 has 6 divisors (see below), whose sum is σ = 98883174. Its totient is φ = 45638376.

The previous prime is 68457569. The next prime is 68457593. The reversal of 68457573 is 37575486.

68457573 is a `hidden beast` number, since 6 + 8 + 4 + 575 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47361924 + 21095649 = 6882^2 + 4593^2 .

It is not a de Polignac number, because 68457573 - 2² = 68457569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3803190 + ... + 3803207.

It is an arithmetic number, because the mean of its divisors is an integer number (16480529).

Almost surely, 2^68457573 is an apocalyptic number.

It is an amenable number.

68457573 is a deficient number, since it is larger than the sum of its proper divisors (30425601).

68457573 is a wasteful number, since it uses less digits than its factorization.

68457573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606403 (or 7606400 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 68457573 is about 8273.9091728155. The cubic root of 68457573 is about 409.0789815647.

The spelling of 68457573 in words is "sixty-eight million, four hundred fifty-seven thousand, five hundred seventy-three".