68379469 has 2 divisors, whose sum is σ = 68379470. Its totient is φ = 68379468.

The previous prime is 68379427. The next prime is 68379497. The reversal of 68379469 is 96497386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68062500 + 316969 = 8250^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 68379469 - 2⁷ = 68379341 is a prime.

It is a super-2 number, since 2×68379469² = 9351503561443922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68379869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34189734 + 34189735.

It is an arithmetic number, because the mean of its divisors is an integer number (34189735).

Almost surely, 2^68379469 is an apocalyptic number.

It is an amenable number.

68379469 is a deficient number, since it is larger than the sum of its proper divisors (1).

68379469 is an equidigital number, since it uses as much as digits as its factorization.

68379469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 52.

The square root of 68379469 is about 8269.1879286905. The cubic root of 68379469 is about 408.9233481212.

The spelling of 68379469 in words is "sixty-eight million, three hundred seventy-nine thousand, four hundred sixty-nine".