6251998 has 8 divisors (see below), whose sum is σ = 9785808. Its totient is φ = 2990064.

The previous prime is 6251989. The next prime is 6252011. The reversal of 6251998 is 8991526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6251998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67911 + ... + 68002.

It is an arithmetic number, because the mean of its divisors is an integer number (1223226).

Almost surely, 2^6251998 is an apocalyptic number.

6251998 is a deficient number, since it is larger than the sum of its proper divisors (3533810).

6251998 is a wasteful number, since it uses less digits than its factorization.

6251998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135938.

The product of its digits is 38880, while the sum is 40.

The square root of 6251998 is about 2500.3995680691. The cubic root of 6251998 is about 184.2212013606.

It can be divided in two parts, 6 and 251998, that added together give a square (252004 = 502²).

The spelling of 6251998 in words is "six million, two hundred fifty-one thousand, nine hundred ninety-eight".