68674221 has 48 divisors (see below), whose sum is σ = 126741888. Its totient is φ = 34790400.

The previous prime is 68674181. The next prime is 68674223. The reversal of 68674221 is 12247686.

It is not a de Polignac number, because 68674221 - 2¹¹ = 68672173 is a prime.

It is a super-2 number, since 2×68674221² = 9432297259913682, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68674223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27205 + ... + 29621.

It is an arithmetic number, because the mean of its divisors is an integer number (2640456).

Almost surely, 2^68674221 is an apocalyptic number.

It is an amenable number.

68674221 is a deficient number, since it is larger than the sum of its proper divisors (58067667).

68674221 is a wasteful number, since it uses less digits than its factorization.

68674221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2479 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 68674221 is about 8286.9910703463. The cubic root of 68674221 is about 409.5100651857.

The spelling of 68674221 in words is "sixty-eight million, six hundred seventy-four thousand, two hundred twenty-one".