68773849 has 3 divisors (see below), whose sum is σ = 68782143. Its totient is φ = 68765556.

The previous prime is 68773843. The next prime is 68773867. The reversal of 68773849 is 94837786.

It is a happy number.

The square root of 68773849 is 8293.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 15015625 + 53758224 = 3875^2 + 7332^2 .

It is not a de Polignac number, because 68773849 - 2⁹ = 68773337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68773796 and 68773805.

It is not an unprimeable number, because it can be changed into a prime (68773843) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4147 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (22927381).

Almost surely, 2^68773849 is an apocalyptic number.

68773849 is the 8293-rd square number.

68773849 is the 4147-th centered octagonal number.

It is an amenable number.

68773849 is a deficient number, since it is larger than the sum of its proper divisors (8294).

68773849 is an frugal number, since it uses more digits than its factorization.

68773849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16586 (or 8293 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The cubic root of 68773849 is about 409.7079995039.

The spelling of 68773849 in words is "sixty-eight million, seven hundred seventy-three thousand, eight hundred forty-nine".