6998258 has 4 divisors (see below), whose sum is σ = 10497390. Its totient is φ = 3499128.

The previous prime is 6998221. The next prime is 6998261. The reversal of 6998258 is 8528996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 582169 = 2533^2 + 763^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749563 + ... + 1749566.

Almost surely, 2^6998258 is an apocalyptic number.

6998258 is a deficient number, since it is larger than the sum of its proper divisors (3499132).

6998258 is a wasteful number, since it uses less digits than its factorization.

6998258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499131.

The product of its digits is 311040, while the sum is 47.

The square root of 6998258 is about 2645.4220835247. The cubic root of 6998258 is about 191.2772487411.

The spelling of 6998258 in words is "six million, nine hundred ninety-eight thousand, two hundred fifty-eight".