68753247 has 4 divisors (see below), whose sum is σ = 91671000. Its totient is φ = 45835496.

The previous prime is 68753239. The next prime is 68753249. The reversal of 68753247 is 74235786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68753247 - 2³ = 68753239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68753199 and 68753208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68753249) 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, 11458872 + ... + 11458877.

It is an arithmetic number, because the mean of its divisors is an integer number (22917750).

Almost surely, 2^68753247 is an apocalyptic number.

68753247 is a deficient number, since it is larger than the sum of its proper divisors (22917753).

68753247 is a wasteful number, since it uses less digits than its factorization.

68753247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22917752.

The product of its digits is 282240, while the sum is 42.

The square root of 68753247 is about 8291.7577750438. The cubic root of 68753247 is about 409.6670844986.

The spelling of 68753247 in words is "sixty-eight million, seven hundred fifty-three thousand, two hundred forty-seven".