68602769 has 4 divisors (see below), whose sum is σ = 72638244. Its totient is φ = 64567296.

The previous prime is 68602757. The next prime is 68602867. The reversal of 68602769 is 96720686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26832400 + 41770369 = 5180^2 + 6463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68602769 is a prime.

It is a super-2 number, since 2×68602769² = 9412679828934722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68602739) 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, 2017712 + ... + 2017745.

It is an arithmetic number, because the mean of its divisors is an integer number (18159561).

Almost surely, 2^68602769 is an apocalyptic number.

It is an amenable number.

68602769 is a deficient number, since it is larger than the sum of its proper divisors (4035475).

68602769 is a wasteful number, since it uses less digits than its factorization.

68602769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035474.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 68602769 is about 8282.6788540906. The cubic root of 68602769 is about 409.3679911703.

The spelling of 68602769 in words is "sixty-eight million, six hundred two thousand, seven hundred sixty-nine".