7836641 has 4 divisors (see below), whose sum is σ = 8106900. Its totient is φ = 7566384.

The previous prime is 7836613. The next prime is 7836649. The reversal of 7836641 is 1466387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1466387 = 13 ⋅112799.

It can be written as a sum of positive squares in 2 ways, for example, as 5017600 + 2819041 = 2240^2 + 1679^2 .

It is a cyclic number.

It is not a de Polignac number, because 7836641 - 2¹⁴ = 7820257 is a prime.

It is a super-2 number, since 2×7836641² = 122825884325762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7836649) 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, 135086 + ... + 135143.

It is an arithmetic number, because the mean of its divisors is an integer number (2026725).

Almost surely, 2^7836641 is an apocalyptic number.

It is an amenable number.

7836641 is a deficient number, since it is larger than the sum of its proper divisors (270259).

7836641 is a wasteful number, since it uses less digits than its factorization.

7836641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270258.

The product of its digits is 24192, while the sum is 35.

The square root of 7836641 is about 2799.4001143102. The cubic root of 7836641 is about 198.6293024012.

The spelling of 7836641 in words is "seven million, eight hundred thirty-six thousand, six hundred forty-one".