68449671 has 16 divisors (see below), whose sum is σ = 101587200. Its totient is φ = 45552024.

The previous prime is 68449669. The next prime is 68449673. The reversal of 68449671 is 17694486.

It is an interprime number because it is at equal distance from previous prime (68449669) and next prime (68449673).

It is not a de Polignac number, because 68449671 - 2¹ = 68449669 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15870 + ... + 19716.

It is an arithmetic number, because the mean of its divisors is an integer number (6349200).

Almost surely, 2^68449671 is an apocalyptic number.

68449671 is a deficient number, since it is larger than the sum of its proper divisors (33137529).

68449671 is a wasteful number, since it uses less digits than its factorization.

68449671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4509 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68449671 is about 8273.4316338506. The cubic root of 68449671 is about 409.0632410783.

The spelling of 68449671 in words is "sixty-eight million, four hundred forty-nine thousand, six hundred seventy-one".