68787794 has 4 divisors (see below), whose sum is σ = 103181694. Its totient is φ = 34393896.

The previous prime is 68787781. The next prime is 68787857. The reversal of 68787794 is 49778786.

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

It can be written as a sum of positive squares in only one way, i.e., 58140625 + 10647169 = 7625^2 + 3263^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17196947 + ... + 17196950.

Almost surely, 2^68787794 is an apocalyptic number.

68787794 is a deficient number, since it is larger than the sum of its proper divisors (34393900).

68787794 is a wasteful number, since it uses less digits than its factorization.

68787794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34393899.

The product of its digits is 4741632, while the sum is 56.

The square root of 68787794 is about 8293.8407267080. The cubic root of 68787794 is about 409.7356892533.

The spelling of 68787794 in words is "sixty-eight million, seven hundred eighty-seven thousand, seven hundred ninety-four".