455967779 has 4 divisors (see below), whose sum is σ = 458487120. Its totient is φ = 453448440.

The previous prime is 455967749. The next prime is 455967793. The reversal of 455967779 is 977769554.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-455967779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455967739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259399 + ... + 1259760.

It is an arithmetic number, because the mean of its divisors is an integer number (114621780).

Almost surely, 2^455967779 is an apocalyptic number.

455967779 is a deficient number, since it is larger than the sum of its proper divisors (2519341).

455967779 is a wasteful number, since it uses less digits than its factorization.

455967779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519340.

The product of its digits is 16669800, while the sum is 59.

The square root of 455967779 is about 21353.4020474490. The cubic root of 455967779 is about 769.6820967998.

The spelling of 455967779 in words is "four hundred fifty-five million, nine hundred sixty-seven thousand, seven hundred seventy-nine".