7423949 has 8 divisors (see below), whose sum is σ = 8043672. Its totient is φ = 6811200.

The previous prime is 7423937. The next prime is 7423961. The reversal of 7423949 is 9493247.

It is an interprime number because it is at equal distance from previous prime (7423937) and next prime (7423961).

It can be written as a sum of positive squares in 4 ways, for example, as 570025 + 6853924 = 755^2 + 2618^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7423949 - 2⁸ = 7423693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7423909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (1005459).

Almost surely, 2^7423949 is an apocalyptic number.

It is an amenable number.

7423949 is a deficient number, since it is larger than the sum of its proper divisors (619723).

7423949 is a wasteful number, since it uses less digits than its factorization.

7423949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its digits is 54432, while the sum is 38.

The square root of 7423949 is about 2724.6924597099. The cubic root of 7423949 is about 195.0795117340.

The spelling of 7423949 in words is "seven million, four hundred twenty-three thousand, nine hundred forty-nine".