7720983 has 12 divisors (see below), whose sum is σ = 11262160. Its totient is φ = 5096736.

The previous prime is 7720969. The next prime is 7721003. The reversal of 7720983 is 3890277.

It is not a de Polignac number, because 7720983 - 2⁴ = 7720967 is a prime.

It is a super-2 number, since 2×7720983² = 119227156972578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238 + ... + 5091.

Almost surely, 2^7720983 is an apocalyptic number.

7720983 is a deficient number, since it is larger than the sum of its proper divisors (3541177).

7720983 is a wasteful number, since it uses less digits than its factorization.

7720983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438 (or 8435 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7720983 is about 2778.6656869800. The cubic root of 7720983 is about 197.6472906504.

The spelling of 7720983 in words is "seven million, seven hundred twenty thousand, nine hundred eighty-three".