68810356 has 12 divisors (see below), whose sum is σ = 127501668. Its totient is φ = 32381312.

The previous prime is 68810353. The next prime is 68810369. The reversal of 68810356 is 65301886.

It can be written as a sum of positive squares in 2 ways, for example, as 24800400 + 44009956 = 4980^2 + 6634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68810351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505891 + ... + 506026.

It is an arithmetic number, because the mean of its divisors is an integer number (10625139).

Almost surely, 2^68810356 is an apocalyptic number.

It is an amenable number.

68810356 is a deficient number, since it is larger than the sum of its proper divisors (58691312).

68810356 is a wasteful number, since it uses less digits than its factorization.

68810356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011938 (or 1011936 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68810356 is about 8295.2007811746. The cubic root of 68810356 is about 409.7804813381.

The spelling of 68810356 in words is "sixty-eight million, eight hundred ten thousand, three hundred fifty-six".