7825642 has 16 divisors (see below), whose sum is σ = 13024800. Its totient is φ = 3496240.

The previous prime is 7825639. The next prime is 7825651. The reversal of 7825642 is 2465287.

It is a super-2 number, since 2×7825642² = 122481345424328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7825598 and 7825607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717 + ... + 4312.

It is an arithmetic number, because the mean of its divisors is an integer number (814050).

Almost surely, 2^7825642 is an apocalyptic number.

7825642 is a deficient number, since it is larger than the sum of its proper divisors (5199158).

7825642 is a wasteful number, since it uses less digits than its factorization.

7825642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101.

The product of its digits is 26880, while the sum is 34.

The square root of 7825642 is about 2797.4348964721. The cubic root of 7825642 is about 198.5363311648.

The spelling of 7825642 in words is "seven million, eight hundred twenty-five thousand, six hundred forty-two".