68493616 has 40 divisors (see below), whose sum is σ = 136803744. Its totient is φ = 33200640.

The previous prime is 68493583. The next prime is 68493619. The reversal of 68493616 is 61639486.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68493619) 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, 172330 + ... + 172726.

Almost surely, 2^68493616 is an apocalyptic number.

It is an amenable number.

68493616 is a deficient number, since it is larger than the sum of its proper divisors (68310128).

68493616 is a wasteful number, since it uses less digits than its factorization.

68493616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 703 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 68493616 is about 8276.0869980928. The cubic root of 68493616 is about 409.1507625048.

The spelling of 68493616 in words is "sixty-eight million, four hundred ninety-three thousand, six hundred sixteen".