6998425 has 36 divisors (see below), whose sum is σ = 10495980. Its totient is φ = 4609920.

The previous prime is 6998423. The next prime is 6998447. The reversal of 6998425 is 5248996.

It can be written as a sum of positive squares in 6 ways, for example, as 254016 + 6744409 = 504^2 + 2597^2 .

It is not a de Polignac number, because 6998425 - 2¹ = 6998423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6998423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35427 + ... + 35623.

It is an arithmetic number, because the mean of its divisors is an integer number (291555).

Almost surely, 2^6998425 is an apocalyptic number.

It is an amenable number.

6998425 is a deficient number, since it is larger than the sum of its proper divisors (3497555).

6998425 is a wasteful number, since it uses less digits than its factorization.

6998425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 238 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 6998425 is about 2645.4536472976. The cubic root of 6998425 is about 191.2787702172.

The spelling of 6998425 in words is "six million, nine hundred ninety-eight thousand, four hundred twenty-five".