6269991 has 48 divisors (see below), whose sum is σ = 11146464. Its totient is φ = 3096576.

The previous prime is 6269987. The next prime is 6270001. The reversal of 6269991 is 1999626.

It is a happy number.

It is not a de Polignac number, because 6269991 - 2² = 6269987 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6269911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32391 + ... + 32583.

It is an arithmetic number, because the mean of its divisors is an integer number (232218).

Almost surely, 2^6269991 is an apocalyptic number.

6269991 is a deficient number, since it is larger than the sum of its proper divisors (4876473).

6269991 is a wasteful number, since it uses less digits than its factorization.

6269991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 233 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The square root of 6269991 is about 2503.9950079822. The cubic root of 6269991 is about 184.3977591746.

It can be divided in two parts, 6269 and 991, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6269991 in words is "six million, two hundred sixty-nine thousand, nine hundred ninety-one".