6248991 has 16 divisors (see below), whose sum is σ = 9561344. Its totient is φ = 3556224.

The previous prime is 6248969. The next prime is 6248999. The reversal of 6248991 is 1998426.

It is not a de Polignac number, because 6248991 - 2⁵ = 6248959 is a prime.

It is a Duffinian number.

6248991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6248999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6636 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (597584).

Almost surely, 2^6248991 is an apocalyptic number.

6248991 is a deficient number, since it is larger than the sum of its proper divisors (3312353).

6248991 is a wasteful number, since it uses less digits than its factorization.

6248991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its digits is 31104, while the sum is 39.

The square root of 6248991 is about 2499.7981918547. The cubic root of 6248991 is about 184.1916618978.

The spelling of 6248991 in words is "six million, two hundred forty-eight thousand, nine hundred ninety-one".