6426949 has 4 divisors (see below), whose sum is σ = 6454080. Its totient is φ = 6399820.

The previous prime is 6426947. The next prime is 6426971. The reversal of 6426949 is 9496246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9496246 = 2 ⋅4748123.

It is a cyclic number.

It is not a de Polignac number, because 6426949 - 2¹ = 6426947 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13207 + ... + 13684.

It is an arithmetic number, because the mean of its divisors is an integer number (1613520).

Almost surely, 2^6426949 is an apocalyptic number.

It is an amenable number.

6426949 is a deficient number, since it is larger than the sum of its proper divisors (27131).

6426949 is a wasteful number, since it uses less digits than its factorization.

6426949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27130.

The product of its digits is 93312, while the sum is 40.

The square root of 6426949 is about 2535.1427967671. The cubic root of 6426949 is about 185.9237846296.

The spelling of 6426949 in words is "six million, four hundred twenty-six thousand, nine hundred forty-nine".