68968249 has 4 divisors (see below), whose sum is σ = 78820864. Its totient is φ = 59115636.

The previous prime is 68968243. The next prime is 68968267. The reversal of 68968249 is 94286986.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94286986 = 2 ⋅47143493.

It is a cyclic number.

It is not a de Polignac number, because 68968249 - 2⁷ = 68968121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68968196 and 68968205.

It is not an unprimeable number, because it can be changed into a prime (68968243) 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, 4926297 + ... + 4926310.

It is an arithmetic number, because the mean of its divisors is an integer number (19705216).

Almost surely, 2^68968249 is an apocalyptic number.

It is an amenable number.

68968249 is a deficient number, since it is larger than the sum of its proper divisors (9852615).

68968249 is an equidigital number, since it uses as much as digits as its factorization.

68968249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852614.

The product of its digits is 1492992, while the sum is 52.

The square root of 68968249 is about 8304.7124573943. The cubic root of 68968249 is about 410.0936708445.

The spelling of 68968249 in words is "sixty-eight million, nine hundred sixty-eight thousand, two hundred forty-nine".