68493787 has 8 divisors (see below), whose sum is σ = 70837632. Its totient is φ = 66158400.

The previous prime is 68493773. The next prime is 68493791. The reversal of 68493787 is 78739486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68493787 - 2²³ = 60105179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68494787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17337 + ... + 20917.

It is an arithmetic number, because the mean of its divisors is an integer number (8854704).

Almost surely, 2^68493787 is an apocalyptic number.

68493787 is a deficient number, since it is larger than the sum of its proper divisors (2343845).

68493787 is a wasteful number, since it uses less digits than its factorization.

68493787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229.

The product of its digits is 2032128, while the sum is 52.

The square root of 68493787 is about 8276.0973290555. The cubic root of 68493787 is about 409.1511029974.

The spelling of 68493787 in words is "sixty-eight million, four hundred ninety-three thousand, seven hundred eighty-seven".