447475279 has 2 divisors, whose sum is σ = 447475280. Its totient is φ = 447475278.

The previous prime is 447475267. The next prime is 447475283. The reversal of 447475279 is 972574744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447475279 - 2⁵ = 447475247 is a prime.

It is a super-2 number, since 2×447475279² = 400468250632255682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447475219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223737639 + 223737640.

It is an arithmetic number, because the mean of its divisors is an integer number (223737640).

Almost surely, 2^447475279 is an apocalyptic number.

447475279 is a deficient number, since it is larger than the sum of its proper divisors (1).

447475279 is an equidigital number, since it uses as much as digits as its factorization.

447475279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 49.

The square root of 447475279 is about 21153.6114883487. The cubic root of 447475279 is about 764.8736197453.

The spelling of 447475279 in words is "four hundred forty-seven million, four hundred seventy-five thousand, two hundred seventy-nine".