9720937 has 2 divisors, whose sum is σ = 9720938. Its totient is φ = 9720936.

The previous prime is 9720917. The next prime is 9720959. The reversal of 9720937 is 7390279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6817321 + 2903616 = 2611^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 9720937 - 2¹⁵ = 9688169 is a prime.

9720937 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9720896 and 9720905.

It is not a weakly prime, because it can be changed into another prime (9720917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860468 + 4860469.

It is an arithmetic number, because the mean of its divisors is an integer number (4860469).

Almost surely, 2^9720937 is an apocalyptic number.

It is an amenable number.

9720937 is a deficient number, since it is larger than the sum of its proper divisors (1).

9720937 is an equidigital number, since it uses as much as digits as its factorization.

9720937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 9720937 is about 3117.8417214477. The cubic root of 9720937 is about 213.4204556808.

The spelling of 9720937 in words is "nine million, seven hundred twenty thousand, nine hundred thirty-seven".