68654479 has 2 divisors, whose sum is σ = 68654480. Its totient is φ = 68654478.

The previous prime is 68654441. The next prime is 68654489. The reversal of 68654479 is 97445686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68654479 - 2¹¹ = 68652431 is a prime.

It is a super-2 number, since 2×68654479² = 9426874973522882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68654489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34327239 + 34327240.

It is an arithmetic number, because the mean of its divisors is an integer number (34327240).

Almost surely, 2^68654479 is an apocalyptic number.

68654479 is a deficient number, since it is larger than the sum of its proper divisors (1).

68654479 is an equidigital number, since it uses as much as digits as its factorization.

68654479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 68654479 is about 8285.7998406913. The cubic root of 68654479 is about 409.4708203648.

The spelling of 68654479 in words is "sixty-eight million, six hundred fifty-four thousand, four hundred seventy-nine".