68765049 has 18 divisors (see below), whose sum is σ = 100787310. Its totient is φ = 45173568.

The previous prime is 68765027. The next prime is 68765063. The reversal of 68765049 is 94056786.

It can be written as a sum of positive squares in 3 ways, for example, as 33872400 + 34892649 = 5820^2 + 5907^2 .

It is not a de Polignac number, because 68765049 - 2⁸ = 68764793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68764995 and 68765013.

It is not an unprimeable number, because it can be changed into a prime (68765449) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 234547 + ... + 234839.

It is an arithmetic number, because the mean of its divisors is an integer number (5599295).

Almost surely, 2^68765049 is an apocalyptic number.

It is an amenable number.

68765049 is a deficient number, since it is larger than the sum of its proper divisors (32022261).

68765049 is an equidigital number, since it uses as much as digits as its factorization.

68765049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 68765049 is about 8292.4694150778. The cubic root of 68765049 is about 409.6905239458.

The spelling of 68765049 in words is "sixty-eight million, seven hundred sixty-five thousand, forty-nine".