68280949 has 16 divisors (see below), whose sum is σ = 77112000. Its totient is φ = 59920000.

The previous prime is 68280943. The next prime is 68280977. The reversal of 68280949 is 94908286.

It is a cyclic number.

It is not a de Polignac number, because 68280949 - 2⁵ = 68280917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68280899 and 68280908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68280943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44802 + ... + 46300.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 2^68280949 is an apocalyptic number.

It is an amenable number.

68280949 is a deficient number, since it is larger than the sum of its proper divisors (8831051).

68280949 is a wasteful number, since it uses less digits than its factorization.

68280949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 68280949 is about 8263.2287273196. The cubic root of 68280949 is about 408.7268637442.

The spelling of 68280949 in words is "sixty-eight million, two hundred eighty thousand, nine hundred forty-nine".