4287431 has 2 divisors, whose sum is σ = 4287432. Its totient is φ = 4287430.

The previous prime is 4287427. The next prime is 4287457. The reversal of 4287431 is 1347824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4287431 - 2² = 4287427 is a prime.

It is a super-2 number, since 2×4287431² = 36764129159522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4287394 and 4287403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4217431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2143715 + 2143716.

It is an arithmetic number, because the mean of its divisors is an integer number (2143716).

Almost surely, 2^4287431 is an apocalyptic number.

4287431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4287431 is an equidigital number, since it uses as much as digits as its factorization.

4287431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 4287431 is about 2070.6112624054. The cubic root of 4287431 is about 162.4547376898.

The spelling of 4287431 in words is "four million, two hundred eighty-seven thousand, four hundred thirty-one".