68787724 has 12 divisors (see below), whose sum is σ = 120539664. Its totient is φ = 34347824.

The previous prime is 68787703. The next prime is 68787727. The reversal of 68787724 is 42778786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68787727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8032 + ... + 14215.

It is an arithmetic number, because the mean of its divisors is an integer number (10044972).

Almost surely, 2^68787724 is an apocalyptic number.

It is an amenable number.

68787724 is a deficient number, since it is larger than the sum of its proper divisors (51751940).

68787724 is a wasteful number, since it uses less digits than its factorization.

68787724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024 (or 23022 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 49.

The square root of 68787724 is about 8293.8365067079. The cubic root of 68787724 is about 409.7355502679.

The spelling of 68787724 in words is "sixty-eight million, seven hundred eighty-seven thousand, seven hundred twenty-four".