7806461 has 8 divisors (see below), whose sum is σ = 8440824. Its totient is φ = 7176960.

The previous prime is 7806439. The next prime is 7806479. The reversal of 7806461 is 1646087.

It can be written as a sum of positive squares in 4 ways, for example, as 25 + 7806436 = 5^2 + 2794^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7806461 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 (7806431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2585 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (1055103).

Almost surely, 2^7806461 is an apocalyptic number.

It is an amenable number.

7806461 is a deficient number, since it is larger than the sum of its proper divisors (634363).

7806461 is a wasteful number, since it uses less digits than its factorization.

7806461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7806461 is about 2794.0044738690. The cubic root of 7806461 is about 198.3739913037.

It can be divided in two parts, 78064 and 61, that added together give a 7-th power (78125 = 5⁷).

The spelling of 7806461 in words is "seven million, eight hundred six thousand, four hundred sixty-one".