68495647 has 8 divisors (see below), whose sum is σ = 77133312. Its totient is φ = 60259800.

The previous prime is 68495629. The next prime is 68495653. The reversal of 68495647 is 74659486.

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 68495647 - 2¹⁹ = 67971359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68495647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68495657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100093 + ... + 100774.

It is an arithmetic number, because the mean of its divisors is an integer number (9641664).

Almost surely, 2^68495647 is an apocalyptic number.

68495647 is a deficient number, since it is larger than the sum of its proper divisors (8637665).

68495647 is a wasteful number, since it uses less digits than its factorization.

68495647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200909.

The product of its digits is 1451520, while the sum is 49.

The square root of 68495647 is about 8276.2097000982. The cubic root of 68495647 is about 409.1548065653.

The spelling of 68495647 in words is "sixty-eight million, four hundred ninety-five thousand, six hundred forty-seven".