68284761 has 4 divisors (see below), whose sum is σ = 91046352. Its totient is φ = 45523172.

The previous prime is 68284759. The next prime is 68284789. The reversal of 68284761 is 16748286.

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.

It is a cyclic number.

It is not a de Polignac number, because 68284761 - 2¹ = 68284759 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68284061) 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, 11380791 + ... + 11380796.

It is an arithmetic number, because the mean of its divisors is an integer number (22761588).

Almost surely, 2^68284761 is an apocalyptic number.

It is an amenable number.

68284761 is a deficient number, since it is larger than the sum of its proper divisors (22761591).

68284761 is a wasteful number, since it uses less digits than its factorization.

68284761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22761590.

The product of its digits is 129024, while the sum is 42.

The square root of 68284761 is about 8263.4593845435. The cubic root of 68284761 is about 408.7344697594.

The spelling of 68284761 in words is "sixty-eight million, two hundred eighty-four thousand, seven hundred sixty-one".