7949445 has 16 divisors (see below), whose sum is σ = 14536320. Its totient is φ = 3633984.

The previous prime is 7949443. The next prime is 7949497. The reversal of 7949445 is 5449497.

It is not a de Polignac number, because 7949445 - 2¹ = 7949443 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7949397 and 7949406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7949443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37750 + ... + 37959.

It is an arithmetic number, because the mean of its divisors is an integer number (908520).

Almost surely, 2^7949445 is an apocalyptic number.

It is an amenable number.

7949445 is a deficient number, since it is larger than the sum of its proper divisors (6586875).

7949445 is a wasteful number, since it uses less digits than its factorization.

7949445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75724.

The product of its digits is 181440, while the sum is 42.

The square root of 7949445 is about 2819.4760151489. The cubic root of 7949445 is about 199.5778177712.

The spelling of 7949445 in words is "seven million, nine hundred forty-nine thousand, four hundred forty-five".