68491116 has 24 divisors (see below), whose sum is σ = 177569840. Its totient is φ = 22830336.

The previous prime is 68491091. The next prime is 68491117. The reversal of 68491116 is 61119486.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68491117) 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, 316981 + ... + 317196.

Almost surely, 2^68491116 is an apocalyptic number.

It is an amenable number.

68491116 is an abundant number, since it is smaller than the sum of its proper divisors (109078724).

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

68491116 is a wasteful number, since it uses less digits than its factorization.

68491116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634190 (or 634182 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 68491116 is about 8275.9359591529. The cubic root of 68491116 is about 409.1457844771.

The spelling of 68491116 in words is "sixty-eight million, four hundred ninety-one thousand, one hundred sixteen".