68332457 has 4 divisors (see below), whose sum is σ = 68373840. Its totient is φ = 68291076.

The previous prime is 68332409. The next prime is 68332499. The reversal of 68332457 is 75423386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68332457 - 2¹⁰ = 68331433 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 68332457.

It is not an unprimeable number, because it can be changed into a prime (68332657) 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, 18107 + ... + 21552.

It is an arithmetic number, because the mean of its divisors is an integer number (17093460).

Almost surely, 2^68332457 is an apocalyptic number.

It is an amenable number.

68332457 is a deficient number, since it is larger than the sum of its proper divisors (41383).

68332457 is a wasteful number, since it uses less digits than its factorization.

68332457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41382.

The product of its digits is 120960, while the sum is 38.

The square root of 68332457 is about 8266.3448391656. The cubic root of 68332457 is about 408.8296128130.

The spelling of 68332457 in words is "sixty-eight million, three hundred thirty-two thousand, four hundred fifty-seven".