68742397 has 8 divisors (see below), whose sum is σ = 69249600. Its totient is φ = 68237664.

The previous prime is 68742389. The next prime is 68742409. The reversal of 68742397 is 79324786.

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 68742397 - 2³ = 68742389 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 (68742347) 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, 150193 + ... + 150649.

It is an arithmetic number, because the mean of its divisors is an integer number (8656200).

Almost surely, 2^68742397 is an apocalyptic number.

It is an amenable number.

68742397 is a deficient number, since it is larger than the sum of its proper divisors (507203).

68742397 is a wasteful number, since it uses less digits than its factorization.

68742397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its digits is 508032, while the sum is 46.

The square root of 68742397 is about 8291.1034850616. The cubic root of 68742397 is about 409.6455334112.

The spelling of 68742397 in words is "sixty-eight million, seven hundred forty-two thousand, three hundred ninety-seven".