7825987 has 8 divisors (see below), whose sum is σ = 8530704. Its totient is φ = 7135968.

The previous prime is 7825973. The next prime is 7825991. The reversal of 7825987 is 7895287.

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

It is a cyclic number.

It is not a de Polignac number, because 7825987 - 2¹⁹ = 7301699 is a prime.

It is a super-2 number, since 2×7825987² = 122492145048338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (1066338).

Almost surely, 2^7825987 is an apocalyptic number.

7825987 is a deficient number, since it is larger than the sum of its proper divisors (704717).

7825987 is a wasteful number, since it uses less digits than its factorization.

7825987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349.

The product of its digits is 282240, while the sum is 46.

The square root of 7825987 is about 2797.4965594259. The cubic root of 7825987 is about 198.5392486689.

The spelling of 7825987 in words is "seven million, eight hundred twenty-five thousand, nine hundred eighty-seven".