427778974 has 16 divisors (see below), whose sum is σ = 733608288. Its totient is φ = 183265632.

The previous prime is 427778947. The next prime is 427779083. The reversal of 427778974 is 479877724.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 57492 + ... + 64504.

It is an arithmetic number, because the mean of its divisors is an integer number (45850518).

Almost surely, 2^427778974 is an apocalyptic number.

427778974 is a deficient number, since it is larger than the sum of its proper divisors (305829314).

427778974 is a wasteful number, since it uses less digits than its factorization.

427778974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11379.

The product of its digits is 5531904, while the sum is 55.

The square root of 427778974 is about 20682.8183282646. The cubic root of 427778974 is about 753.4824562301.

The spelling of 427778974 in words is "four hundred twenty-seven million, seven hundred seventy-eight thousand, nine hundred seventy-four".