4791478 has 4 divisors (see below), whose sum is σ = 7187220. Its totient is φ = 2395738.

The previous prime is 4791461. The next prime is 4791481. The reversal of 4791478 is 8741974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8741974 = 2 ⋅4370987.

It is a super-2 number, since 2×4791478² = 45916522848968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4791478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1197868 + ... + 1197871.

It is an arithmetic number, because the mean of its divisors is an integer number (1796805).

Almost surely, 2^4791478 is an apocalyptic number.

4791478 is a deficient number, since it is larger than the sum of its proper divisors (2395742).

4791478 is a wasteful number, since it uses less digits than its factorization.

4791478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395741.

The product of its digits is 56448, while the sum is 40.

The square root of 4791478 is about 2188.9444944996. The cubic root of 4791478 is about 168.5866442949.

The spelling of 4791478 in words is "four million, seven hundred ninety-one thousand, four hundred seventy-eight".