68787224 has 16 divisors (see below), whose sum is σ = 140701320. Its totient is φ = 31266880.

The previous prime is 68787209. The next prime is 68787241. The reversal of 68787224 is 42278786.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390749 + ... + 390924.

Almost surely, 2^68787224 is an apocalyptic number.

It is an amenable number.

68787224 is an abundant number, since it is smaller than the sum of its proper divisors (71914096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68787224 is a wasteful number, since it uses less digits than its factorization.

68787224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781690 (or 781686 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 68787224 is about 8293.8063637874. The cubic root of 68787224 is about 409.7345575119.

The spelling of 68787224 in words is "sixty-eight million, seven hundred eighty-seven thousand, two hundred twenty-four".