68898355 has 16 divisors (see below), whose sum is σ = 84047040. Its totient is φ = 54214272.

The previous prime is 68898343. The next prime is 68898391. The reversal of 68898355 is 55389886.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68898355 - 2¹¹ = 68896307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90637 + ... + 91393.

It is an arithmetic number, because the mean of its divisors is an integer number (5252940).

Almost surely, 2^68898355 is an apocalyptic number.

68898355 is a deficient number, since it is larger than the sum of its proper divisors (15148685).

68898355 is a wasteful number, since it uses less digits than its factorization.

68898355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038.

The product of its digits is 2073600, while the sum is 52.

The square root of 68898355 is about 8300.5032979934. The cubic root of 68898355 is about 409.9550912541.

The spelling of 68898355 in words is "sixty-eight million, eight hundred ninety-eight thousand, three hundred fifty-five".