7832561 has 4 divisors (see below), whose sum is σ = 8544624. Its totient is φ = 7120500.

The previous prime is 7832557. The next prime is 7832569. The reversal of 7832561 is 1652387.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1652387 = 11 ⋅150217.

It is a cyclic number.

It is not a de Polignac number, because 7832561 - 2² = 7832557 is a prime.

It is a super-2 number, since 2×7832561² = 122698023637442, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7832569) 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, 356015 + ... + 356036.

It is an arithmetic number, because the mean of its divisors is an integer number (2136156).

Almost surely, 2^7832561 is an apocalyptic number.

It is an amenable number.

7832561 is a deficient number, since it is larger than the sum of its proper divisors (712063).

7832561 is a wasteful number, since it uses less digits than its factorization.

7832561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712062.

The product of its digits is 10080, while the sum is 32.

The square root of 7832561 is about 2798.6712918812. The cubic root of 7832561 is about 198.5948255449.

The spelling of 7832561 in words is "seven million, eight hundred thirty-two thousand, five hundred sixty-one".