4098431 has 4 divisors (see below), whose sum is σ = 4106112. Its totient is φ = 4090752.

The previous prime is 4098427. The next prime is 4098449. The reversal of 4098431 is 1348904.

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

It is a cyclic number.

It is not a de Polignac number, because 4098431 - 2² = 4098427 is a prime.

It is a super-2 number, since 2×4098431² = 33594273323522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4098394 and 4098403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4098461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2975 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (1026528).

Almost surely, 2^4098431 is an apocalyptic number.

4098431 is a deficient number, since it is larger than the sum of its proper divisors (7681).

4098431 is an equidigital number, since it uses as much as digits as its factorization.

4098431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4098431 is about 2024.4581991239. The cubic root of 4098431 is about 160.0316473857.

The spelling of 4098431 in words is "four million, ninety-eight thousand, four hundred thirty-one".