68427247 has 4 divisors (see below), whose sum is σ = 78202576. Its totient is φ = 58651920.

The previous prime is 68427239. The next prime is 68427259. The reversal of 68427247 is 74272486.

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 68427247 - 2³ = 68427239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68427287) 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, 4887654 + ... + 4887667.

It is an arithmetic number, because the mean of its divisors is an integer number (19550644).

Almost surely, 2^68427247 is an apocalyptic number.

68427247 is a deficient number, since it is larger than the sum of its proper divisors (9775329).

68427247 is an equidigital number, since it uses as much as digits as its factorization.

68427247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775328.

The product of its digits is 150528, while the sum is 40.

The square root of 68427247 is about 8272.0763415239. The cubic root of 68427247 is about 409.0185667171.

The spelling of 68427247 in words is "sixty-eight million, four hundred twenty-seven thousand, two hundred forty-seven".