2669247 has 32 divisors (see below), whose sum is σ = 4684800. Its totient is φ = 1469664.

The previous prime is 2669243. The next prime is 2669257. The reversal of 2669247 is 7429662.

It is a happy number.

It is not a de Polignac number, because 2669247 - 2² = 2669243 is a prime.

2669247 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5238 + ... + 5724.

It is an arithmetic number, because the mean of its divisors is an integer number (146400).

2^2669247 is an apocalyptic number.

2669247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2669247 is a deficient number, since it is larger than the sum of its proper divisors (2015553).

2669247 is a wasteful number, since it uses less digits than its factorization.

2669247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 526 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2669247 is about 1633.7830333309. The cubic root of 2669247 is about 138.7169680316.

It can be divided in two parts, 2669 and 247, that added together give a square (2916 = 54²).

The spelling of 2669247 in words is "two million, six hundred sixty-nine thousand, two hundred forty-seven".