68308465 has 8 divisors (see below), whose sum is σ = 86792040. Its totient is φ = 51432192.

The previous prime is 68308453. The next prime is 68308483. The reversal of 68308465 is 56480386.

It can be written as a sum of positive squares in 4 ways, for example, as 3538161 + 64770304 = 1881^2 + 8048^2 .

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 68308465 - 2¹¹ = 68306417 is a prime.

It is a super-3 number, since 3×68308465³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401730 + ... + 401899.

It is an arithmetic number, because the mean of its divisors is an integer number (10849005).

Almost surely, 2^68308465 is an apocalyptic number.

It is an amenable number.

68308465 is a deficient number, since it is larger than the sum of its proper divisors (18483575).

68308465 is a wasteful number, since it uses less digits than its factorization.

68308465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803651.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68308465 is about 8264.8935262349. The cubic root of 68308465 is about 408.7817595737.

The spelling of 68308465 in words is "sixty-eight million, three hundred eight thousand, four hundred sixty-five".