68469538 has 4 divisors (see below), whose sum is σ = 102704310. Its totient is φ = 34234768.

The previous prime is 68469529. The next prime is 68469539. The reversal of 68469538 is 83596486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83596486 = 2 ⋅41798243.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 12623809 = 7473^2 + 3553^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68469491 and 68469500.

It is not an unprimeable number, because it can be changed into a prime (68469539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17117383 + ... + 17117386.

Almost surely, 2^68469538 is an apocalyptic number.

68469538 is a deficient number, since it is larger than the sum of its proper divisors (34234772).

68469538 is a wasteful number, since it uses less digits than its factorization.

68469538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34234771.

The product of its digits is 1244160, while the sum is 49.

The square root of 68469538 is about 8274.6321972641. The cubic root of 68469538 is about 409.1028130887.

It can be divided in two parts, 6846 and 9538, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 68469538 in words is "sixty-eight million, four hundred sixty-nine thousand, five hundred thirty-eight".