4878431 has 2 divisors, whose sum is σ = 4878432. Its totient is φ = 4878430.

The previous prime is 4878397. The next prime is 4878443. The reversal of 4878431 is 1348784.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4878431 - 2¹⁴ = 4862047 is a prime.

It is a super-2 number, since 2×4878431² = 47598178043522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4878391 and 4878400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4871431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439215 + 2439216.

It is an arithmetic number, because the mean of its divisors is an integer number (2439216).

Almost surely, 2^4878431 is an apocalyptic number.

4878431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878431 is an equidigital number, since it uses as much as digits as its factorization.

4878431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 4878431 is about 2208.7170484243. The cubic root of 4878431 is about 169.6003414427.

The spelling of 4878431 in words is "four million, eight hundred seventy-eight thousand, four hundred thirty-one".