4294978 has 4 divisors (see below), whose sum is σ = 6442470. Its totient is φ = 2147488.

The previous prime is 4294973. The next prime is 4294991. The reversal of 4294978 is 8794924.

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

It can be written as a sum of positive squares in only one way, i.e., 3359889 + 935089 = 1833^2 + 967^2 .

It is not an unprimeable number, because it can be changed into a prime (4294973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073743 + ... + 1073746.

Almost surely, 2^4294978 is an apocalyptic number.

4294978 is a deficient number, since it is larger than the sum of its proper divisors (2147492).

4294978 is a wasteful number, since it uses less digits than its factorization.

4294978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147491.

The product of its digits is 145152, while the sum is 43.

The square root of 4294978 is about 2072.4328698416. The cubic root of 4294978 is about 162.5500027581.

The spelling of 4294978 in words is "four million, two hundred ninety-four thousand, nine hundred seventy-eight".