7820536 has 8 divisors (see below), whose sum is σ = 14663520. Its totient is φ = 3910264.

The previous prime is 7820507. The next prime is 7820551. The reversal of 7820536 is 6350287.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7820536² = 122321566654592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7820498 and 7820507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488776 + ... + 488791.

It is an arithmetic number, because the mean of its divisors is an integer number (1832940).

Almost surely, 2^7820536 is an apocalyptic number.

It is an amenable number.

7820536 is a deficient number, since it is larger than the sum of its proper divisors (6842984).

7820536 is a wasteful number, since it uses less digits than its factorization.

7820536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977573 (or 977569 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7820536 is about 2796.5221257841. The cubic root of 7820536 is about 198.4931420752.

The spelling of 7820536 in words is "seven million, eight hundred twenty thousand, five hundred thirty-six".