68883457 has 16 divisors (see below), whose sum is σ = 73408000. Its totient is φ = 64540800.

The previous prime is 68883449. The next prime is 68883461. The reversal of 68883457 is 75438886.

It is a cyclic number.

It is not a de Polignac number, because 68883457 - 2³ = 68883449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68883457.

It is not an unprimeable number, because it can be changed into a prime (68883407) 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, 137794 + ... + 138292.

It is an arithmetic number, because the mean of its divisors is an integer number (4588000).

Almost surely, 2^68883457 is an apocalyptic number.

It is an amenable number.

68883457 is a deficient number, since it is larger than the sum of its proper divisors (4524543).

68883457 is a wasteful number, since it uses less digits than its factorization.

68883457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its digits is 1290240, while the sum is 49.

The square root of 68883457 is about 8299.6058340140. The cubic root of 68883457 is about 409.9255407120.

The spelling of 68883457 in words is "sixty-eight million, eight hundred eighty-three thousand, four hundred fifty-seven".