7740828 has 36 divisors (see below), whose sum is σ = 20598760. Its totient is φ = 2444256.

The previous prime is 7740791. The next prime is 7740833. The reversal of 7740828 is 8280477.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7740792 and 7740801.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4975 + ... + 6342.

Almost surely, 2^7740828 is an apocalyptic number.

It is an amenable number.

7740828 is an abundant number, since it is smaller than the sum of its proper divisors (12857932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7740828 is a wasteful number, since it uses less digits than its factorization.

7740828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346 (or 11341 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7740828 is about 2782.2343538962. The cubic root of 7740828 is about 197.8164813182.

The spelling of 7740828 in words is "seven million, seven hundred forty thousand, eight hundred twenty-eight".