6890214431 has 2 divisors, whose sum is σ = 6890214432. Its totient is φ = 6890214430.

The previous prime is 6890214367. The next prime is 6890214469. The reversal of 6890214431 is 1344120986.

6890214431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (6890214469) can be obtained adding 6890214431 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6890214431 - 2⁶ = 6890214367 is a prime.

It is a super-2 number, since 2×6890214431² = 94950109810321307522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6890214931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445107215 + 3445107216.

It is an arithmetic number, because the mean of its divisors is an integer number (3445107216).

Almost surely, 2^6890214431 is an apocalyptic number.

6890214431 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890214431 is an equidigital number, since it uses as much as digits as its factorization.

6890214431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 6890214431 is about 83007.3155270064. The cubic root of 6890214431 is about 1902.8778577464.

The spelling of 6890214431 in words is "six billion, eight hundred ninety million, two hundred fourteen thousand, four hundred thirty-one".