68836746 has 64 divisors (see below), whose sum is σ = 158340096. Its totient is φ = 19747200.

The previous prime is 68836741. The next prime is 68836787. The reversal of 68836746 is 64763886.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68836695 and 68836704.

It is not an unprimeable number, because it can be changed into a prime (68836741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207801 + ... + 208131.

It is an arithmetic number, because the mean of its divisors is an integer number (2474064).

Almost surely, 2^68836746 is an apocalyptic number.

68836746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68836746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79170048).

68836746 is an abundant number, since it is smaller than the sum of its proper divisors (89503350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68836746 is a wasteful number, since it uses less digits than its factorization.

68836746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its digits is 1161216, while the sum is 48.

The square root of 68836746 is about 8296.7913074875. The cubic root of 68836746 is about 409.8328606860.

The spelling of 68836746 in words is "sixty-eight million, eight hundred thirty-six thousand, seven hundred forty-six".