68617500 has 120 divisors (see below), whose sum is σ = 228826752. Its totient is φ = 15672000.

The previous prime is 68617463. The next prime is 68617501. The reversal of 68617500 is 571686.

It is a super-2 number, since 2×68617500² = 9416722612500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68617501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51847 + ... + 53153.

Almost surely, 2^68617500 is an apocalyptic number.

68617500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68617500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114413376).

68617500 is an abundant number, since it is smaller than the sum of its proper divisors (160209252).

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

68617500 is a wasteful number, since it uses less digits than its factorization.

68617500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 68617500 is about 8283.5680717913. The cubic root of 68617500 is about 409.3972901252.

The spelling of 68617500 in words is "sixty-eight million, six hundred seventeen thousand, five hundred".