68565730 has 8 divisors (see below), whose sum is σ = 123418332. Its totient is φ = 27426288.

The previous prime is 68565727. The next prime is 68565751. The reversal of 68565730 is 3756586.

It can be written as a sum of positive squares in 2 ways, for example, as 68442529 + 123201 = 8273^2 + 351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3428277 + ... + 3428296.

Almost surely, 2^68565730 is an apocalyptic number.

68565730 is a deficient number, since it is larger than the sum of its proper divisors (54852602).

68565730 is a wasteful number, since it uses less digits than its factorization.

68565730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856580.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 68565730 is about 8280.4426210197. The cubic root of 68565730 is about 409.2943045886.

The spelling of 68565730 in words is "sixty-eight million, five hundred sixty-five thousand, seven hundred thirty".