68072437 has 8 divisors (see below), whose sum is σ = 72752256. Its totient is φ = 63467712.

The previous prime is 68072429. The next prime is 68072449. The reversal of 68072437 is 73427086.

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 68072437 - 2³ = 68072429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68072396 and 68072405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68072237) 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, 16893 + ... + 20530.

It is an arithmetic number, because the mean of its divisors is an integer number (9094032).

Almost surely, 2^68072437 is an apocalyptic number.

It is an amenable number.

68072437 is a deficient number, since it is larger than the sum of its proper divisors (4679819).

68072437 is a wasteful number, since it uses less digits than its factorization.

68072437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37547.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 68072437 is about 8250.6022204443. The cubic root of 68072437 is about 408.3103915289.

The spelling of 68072437 in words is "sixty-eight million, seventy-two thousand, four hundred thirty-seven".