9925919 has 2 divisors, whose sum is σ = 9925920. Its totient is φ = 9925918.

The previous prime is 9925907. The next prime is 9925931. The reversal of 9925919 is 9195299.

It is a balanced prime because it is at equal distance from previous prime (9925907) and next prime (9925931).

It is a cyclic number.

It is not a de Polignac number, because 9925919 - 2¹² = 9921823 is a prime.

It is a super-2 number, since 2×9925919² = 197047735989122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9925919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9925969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4962959 + 4962960.

It is an arithmetic number, because the mean of its divisors is an integer number (4962960).

Almost surely, 2^9925919 is an apocalyptic number.

9925919 is a deficient number, since it is larger than the sum of its proper divisors (1).

9925919 is an equidigital number, since it uses as much as digits as its factorization.

9925919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65610, while the sum is 44.

The square root of 9925919 is about 3150.5426516713. The cubic root of 9925919 is about 214.9101409236.

The spelling of 9925919 in words is "nine million, nine hundred twenty-five thousand, nine hundred nineteen".