68898458 has 4 divisors (see below), whose sum is σ = 103347690. Its totient is φ = 34449228.

The previous prime is 68898457. The next prime is 68898469. The reversal of 68898458 is 85489886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68773849 + 124609 = 8293^2 + 353^2 .

It is not an unprimeable number, because it can be changed into a prime (68898457) by changing a digit.

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 as a sum of consecutive naturals, namely, 17224613 + ... + 17224616.

Almost surely, 2^68898458 is an apocalyptic number.

68898458 is a deficient number, since it is larger than the sum of its proper divisors (34449232).

68898458 is a wasteful number, since it uses less digits than its factorization.

68898458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34449231.

The product of its digits is 4423680, while the sum is 56.

The square root of 68898458 is about 8300.5095024342. The cubic root of 68898458 is about 409.9552955422.

The spelling of 68898458 in words is "sixty-eight million, eight hundred ninety-eight thousand, four hundred fifty-eight".