7868431 has 2 divisors, whose sum is σ = 7868432. Its totient is φ = 7868430.

The previous prime is 7868423. The next prime is 7868437. The reversal of 7868431 is 1348687.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7868431 - 2³ = 7868423 is a prime.

It is a super-2 number, since 2×7868431² = 123824412803522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7868437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3934215 + 3934216.

It is an arithmetic number, because the mean of its divisors is an integer number (3934216).

Almost surely, 2^7868431 is an apocalyptic number.

7868431 is a deficient number, since it is larger than the sum of its proper divisors (1).

7868431 is an equidigital number, since it uses as much as digits as its factorization.

7868431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 7868431 is about 2805.0723698329. The cubic root of 7868431 is about 198.8975255842.

The spelling of 7868431 in words is "seven million, eight hundred sixty-eight thousand, four hundred thirty-one".