68473459 has 4 divisors (see below), whose sum is σ = 68520816. Its totient is φ = 68426104.

The previous prime is 68473441. The next prime is 68473477. The reversal of 68473459 is 95437486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95437486 = 2 ⋅47718743.

It is an interprime number because it is at equal distance from previous prime (68473441) and next prime (68473477).

It is a cyclic number.

It is not a de Polignac number, because 68473459 - 2¹⁹ = 67949171 is a prime.

It is a super-2 number, since 2×68473459² = 9377229174849362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68473409) 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, 21439 + ... + 24424.

It is an arithmetic number, because the mean of its divisors is an integer number (17130204).

Almost surely, 2^68473459 is an apocalyptic number.

68473459 is a deficient number, since it is larger than the sum of its proper divisors (47357).

68473459 is a wasteful number, since it uses less digits than its factorization.

68473459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47356.

The product of its digits is 725760, while the sum is 46.

The square root of 68473459 is about 8274.8691228321. The cubic root of 68473459 is about 409.1106222135.

The spelling of 68473459 in words is "sixty-eight million, four hundred seventy-three thousand, four hundred fifty-nine".