7920830 has 16 divisors (see below), whose sum is σ = 14306544. Its totient is φ = 3157440.

The previous prime is 7920821. The next prime is 7920833. The reversal of 7920830 is 380297.

It is a junction number, because it is equal to n+sod(n) for n = 7920793 and 7920802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (894159).

Almost surely, 2^7920830 is an apocalyptic number.

7920830 is a deficient number, since it is larger than the sum of its proper divisors (6385714).

7920830 is a wasteful number, since it uses less digits than its factorization.

7920830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7920830 is about 2814.3969158596. The cubic root of 7920830 is about 199.3380616048.

The spelling of 7920830 in words is "seven million, nine hundred twenty thousand, eight hundred thirty".