68781376 has 14 divisors (see below), whose sum is σ = 136488170. Its totient is φ = 34390656.

The previous prime is 68781347. The next prime is 68781379. The reversal of 68781376 is 67318786.

It can be written as a sum of positive squares in only one way, i.e., 41990400 + 26790976 = 6480^2 + 5176^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68781379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537291 + ... + 537418.

It is an arithmetic number, because the mean of its divisors is an integer number (9749155).

Almost surely, 2^68781376 is an apocalyptic number.

It is an amenable number.

68781376 is a deficient number, since it is larger than the sum of its proper divisors (67706794).

68781376 is a wasteful number, since it uses less digits than its factorization.

68781376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074721 (or 1074711 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 68781376 is about 8293.4538040553. The cubic root of 68781376 is about 409.7229458809.

The spelling of 68781376 in words is "sixty-eight million, seven hundred eighty-one thousand, three hundred seventy-six".