68432457 has 8 divisors (see below), whose sum is σ = 91307776. Its totient is φ = 45589392.

The previous prime is 68432437. The next prime is 68432467. The reversal of 68432457 is 75423486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68432457 - 2¹² = 68428361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68432417) 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, 2578 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (11413472).

Almost surely, 2^68432457 is an apocalyptic number.

It is an amenable number.

68432457 is a deficient number, since it is larger than the sum of its proper divisors (22875319).

68432457 is a wasteful number, since it uses less digits than its factorization.

68432457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16127.

The product of its digits is 161280, while the sum is 39.

The square root of 68432457 is about 8272.3912504185. The cubic root of 68432457 is about 409.0289472441.

The spelling of 68432457 in words is "sixty-eight million, four hundred thirty-two thousand, four hundred fifty-seven".