7720433956 has 9 divisors (see below), whose sum is σ = 13511066961. Its totient is φ = 3860129112.

The previous prime is 7720433939. The next prime is 7720433971. The reversal of 7720433956 is 6593340277.

The square root of 7720433956 is 87866.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 292752100 + 7427681856 = 17110^2 + 86184^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 153766 + ... + 197698.

Almost surely, 2^7720433956 is an apocalyptic number.

7720433956 is the 87866-th square number.

It is an amenable number.

7720433956 is a deficient number, since it is larger than the sum of its proper divisors (5790633005).

7720433956 is an frugal number, since it uses more digits than its factorization.

7720433956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87870 (or 43935 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 46.

The cubic root of 7720433956 is about 1976.4260559789.

The spelling of 7720433956 in words is "seven billion, seven hundred twenty million, four hundred thirty-three thousand, nine hundred fifty-six".