7906447 has 4 divisors (see below), whose sum is σ = 7912080. Its totient is φ = 7900816.

The previous prime is 7906433. The next prime is 7906463. The reversal of 7906447 is 7446097.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7906447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7906417) 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, 1179 + ... + 4147.

It is an arithmetic number, because the mean of its divisors is an integer number (1978020).

Almost surely, 2^7906447 is an apocalyptic number.

7906447 is a deficient number, since it is larger than the sum of its proper divisors (5633).

7906447 is a wasteful number, since it uses less digits than its factorization.

7906447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 7906447 is about 2811.8405004552. The cubic root of 7906447 is about 199.2173328224.

The spelling of 7906447 in words is "seven million, nine hundred six thousand, four hundred forty-seven".