68405495 has 4 divisors (see below), whose sum is σ = 82086600. Its totient is φ = 54724392.

The previous prime is 68405483. The next prime is 68405509. The reversal of 68405495 is 59450486.

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: 59450486 = 2 ⋅29725243.

It is a cyclic number.

It is not a de Polignac number, because 68405495 - 2⁶ = 68405431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6840545 + ... + 6840554.

It is an arithmetic number, because the mean of its divisors is an integer number (20521650).

Almost surely, 2^68405495 is an apocalyptic number.

68405495 is a deficient number, since it is larger than the sum of its proper divisors (13681105).

68405495 is a wasteful number, since it uses less digits than its factorization.

68405495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13681104.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 68405495 is about 8270.7614522485. The cubic root of 68405495 is about 408.9752218257.

The spelling of 68405495 in words is "sixty-eight million, four hundred five thousand, four hundred ninety-five".