68641846 has 64 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 26375328.

The previous prime is 68641841. The next prime is 68641847. The reversal of 68641846 is 64814686.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68641841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383385 + ... + 383563.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^68641846 is an apocalyptic number.

68641846 is a deficient number, since it is larger than the sum of its proper divisors (64414154).

68641846 is a wasteful number, since it uses less digits than its factorization.

68641846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 244 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 68641846 is about 8285.0374772840. The cubic root of 68641846 is about 409.4457034690.

The spelling of 68641846 in words is "sixty-eight million, six hundred forty-one thousand, eight hundred forty-six".