6988549 has 2 divisors, whose sum is σ = 6988550. Its totient is φ = 6988548.

The previous prime is 6988543. The next prime is 6988567. The reversal of 6988549 is 9458896.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 986049 = 2450^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 6988549 - 2¹³ = 6980357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6988543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494274 + 3494275.

It is an arithmetic number, because the mean of its divisors is an integer number (3494275).

Almost surely, 2^6988549 is an apocalyptic number.

It is an amenable number.

6988549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6988549 is an equidigital number, since it uses as much as digits as its factorization.

6988549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 6988549 is about 2643.5863897365. The cubic root of 6988549 is about 191.1887519424.

The spelling of 6988549 in words is "six million, nine hundred eighty-eight thousand, five hundred forty-nine".