68245949 has 4 divisors (see below), whose sum is σ = 69402720. Its totient is φ = 67089180.

The previous prime is 68245943. The next prime is 68245951. The reversal of 68245949 is 94954286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68245949 - 2²⁰ = 67197373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68245943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578297 + ... + 578414.

It is an arithmetic number, because the mean of its divisors is an integer number (17350680).

Almost surely, 2^68245949 is an apocalyptic number.

It is an amenable number.

68245949 is a deficient number, since it is larger than the sum of its proper divisors (1156771).

68245949 is a wasteful number, since it uses less digits than its factorization.

68245949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156770.

The product of its digits is 622080, while the sum is 47.

The square root of 68245949 is about 8261.1106396174. The cubic root of 68245949 is about 408.6570156367.

The spelling of 68245949 in words is "sixty-eight million, two hundred forty-five thousand, nine hundred forty-nine".