6469749 has 36 divisors (see below), whose sum is σ = 11086348. Its totient is φ = 3611520.

The previous prime is 6469703. The next prime is 6469753. The reversal of 6469749 is 9479646.

It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 3175524 = 1815^2 + 1782^2 .

It is not a de Polignac number, because 6469749 - 2¹² = 6465653 is a prime.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6469649) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13929 + ... + 14385.

Almost surely, 2^6469749 is an apocalyptic number.

It is an amenable number.

6469749 is a deficient number, since it is larger than the sum of its proper divisors (4616599).

6469749 is a wasteful number, since it uses less digits than its factorization.

6469749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 484 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 6469749 is about 2543.5701287757. The cubic root of 6469749 is about 186.3355890876.

It can be divided in two parts, 64697 and 49, that added together give a palindrome (64746).

The spelling of 6469749 in words is "six million, four hundred sixty-nine thousand, seven hundred forty-nine".