68436850 has 12 divisors (see below), whose sum is σ = 127292634. Its totient is φ = 27374720.

The previous prime is 68436847. The next prime is 68436853. The reversal of 68436850 is 5863486.

It is an interprime number because it is at equal distance from previous prime (68436847) and next prime (68436853).

It can be written as a sum of positive squares in 3 ways, for example, as 32592681 + 35844169 = 5709^2 + 5987^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68436853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684319 + ... + 684418.

Almost surely, 2^68436850 is an apocalyptic number.

68436850 is a deficient number, since it is larger than the sum of its proper divisors (58855784).

68436850 is a wasteful number, since it uses less digits than its factorization.

68436850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368749 (or 1368744 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68436850 is about 8272.6567679313. The cubic root of 68436850 is about 409.0376995516.

The spelling of 68436850 in words is "sixty-eight million, four hundred thirty-six thousand, eight hundred fifty".