6890214469 has 2 divisors, whose sum is σ = 6890214470. Its totient is φ = 6890214468.

The previous prime is 6890214431. The next prime is 6890214479. The reversal of 6890214469 is 9644120986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4877346244 + 2012868225 = 69838^2 + 44865^2 .

It is a cyclic number.

It is not a de Polignac number, because 6890214469 - 2¹³ = 6890206277 is a prime.

It is a super-2 number, since 2×6890214469² = 94950110857633903922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6890214479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445107234 + 3445107235.

It is an arithmetic number, because the mean of its divisors is an integer number (3445107235).

Almost surely, 2^6890214469 is an apocalyptic number.

It is an amenable number.

6890214469 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890214469 is an equidigital number, since it uses as much as digits as its factorization.

6890214469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 6890214469 is about 83007.3157559019. The cubic root of 6890214469 is about 1902.8778612446.

The spelling of 6890214469 in words is "six billion, eight hundred ninety million, two hundred fourteen thousand, four hundred sixty-nine".