68457071 has 8 divisors (see below), whose sum is σ = 69489840. Its totient is φ = 67431168.

The previous prime is 68457061. The next prime is 68457097. The reversal of 68457071 is 17075486.

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 68457071 - 2²² = 64262767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457001) 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, 20465 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (8686230).

Almost surely, 2^68457071 is an apocalyptic number.

68457071 is a deficient number, since it is larger than the sum of its proper divisors (1032769).

68457071 is a wasteful number, since it uses less digits than its factorization.

68457071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 68457071 is about 8273.8788364346. The cubic root of 68457071 is about 409.0779816356.

The spelling of 68457071 in words is "sixty-eight million, four hundred fifty-seven thousand, seventy-one".