68523287 has 8 divisors (see below), whose sum is σ = 78362400. Its totient is φ = 58696704.

The previous prime is 68523271. The next prime is 68523319. The reversal of 68523287 is 78232586.

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

It is a cyclic number.

It is not a de Polignac number, because 68523287 - 2⁴ = 68523271 is a prime.

It is a super-2 number, since 2×68523287² = 9390881722568738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68523487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20039 + ... + 23207.

It is an arithmetic number, because the mean of its divisors is an integer number (9795300).

Almost surely, 2^68523287 is an apocalyptic number.

68523287 is a deficient number, since it is larger than the sum of its proper divisors (9839113).

68523287 is a wasteful number, since it uses less digits than its factorization.

68523287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265.

The product of its digits is 161280, while the sum is 41.

The square root of 68523287 is about 8277.8793781983. The cubic root of 68523287 is about 409.2098344808.

The spelling of 68523287 in words is "sixty-eight million, five hundred twenty-three thousand, two hundred eighty-seven".