284377949 has 4 divisors (see below), whose sum is σ = 288622464. Its totient is φ = 280133436.

The previous prime is 284377939. The next prime is 284377979. The reversal of 284377949 is 949773482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284377949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 284377949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284377909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122157 + ... + 2122290.

It is an arithmetic number, because the mean of its divisors is an integer number (72155616).

Almost surely, 2^284377949 is an apocalyptic number.

It is an amenable number.

284377949 is a deficient number, since it is larger than the sum of its proper divisors (4244515).

284377949 is an equidigital number, since it uses as much as digits as its factorization.

284377949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244514.

The product of its digits is 3048192, while the sum is 53.

The square root of 284377949 is about 16863.5093915828. The cubic root of 284377949 is about 657.6053017021.

The spelling of 284377949 in words is "two hundred eighty-four million, three hundred seventy-seven thousand, nine hundred forty-nine".