68564371 has 4 divisors (see below), whose sum is σ = 68583952. Its totient is φ = 68544792.

The previous prime is 68564329. The next prime is 68564389. The reversal of 68564371 is 17346586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17346586 = 2 ⋅8673293.

It is a cyclic number.

It is not a de Polignac number, because 68564371 - 2¹¹ = 68562323 is a prime.

It is a super-3 number, since 3×68564371³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68564971) 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, 2940 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (17145988).

Almost surely, 2^68564371 is an apocalyptic number.

68564371 is a deficient number, since it is larger than the sum of its proper divisors (19581).

68564371 is a wasteful number, since it uses less digits than its factorization.

68564371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19580.

The product of its digits is 120960, while the sum is 40.

The square root of 68564371 is about 8280.3605597824. The cubic root of 68564371 is about 409.2916004455.

It can be divided in two parts, 685 and 64371, that added together give a palindrome (65056).

The spelling of 68564371 in words is "sixty-eight million, five hundred sixty-four thousand, three hundred seventy-one".