68573437 has 2 divisors, whose sum is σ = 68573438. Its totient is φ = 68573436.

The previous prime is 68573387. The next prime is 68573441. The reversal of 68573437 is 73437586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36072036 + 32501401 = 6006^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 68573437 - 2¹¹ = 68571389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68573393 and 68573402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68573537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34286718 + 34286719.

It is an arithmetic number, because the mean of its divisors is an integer number (34286719).

Almost surely, 2^68573437 is an apocalyptic number.

It is an amenable number.

68573437 is a deficient number, since it is larger than the sum of its proper divisors (1).

68573437 is an equidigital number, since it uses as much as digits as its factorization.

68573437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 68573437 is about 8280.9079816165. The cubic root of 68573437 is about 409.3096393291.

The spelling of 68573437 in words is "sixty-eight million, five hundred seventy-three thousand, four hundred thirty-seven".