9942619 has 2 divisors, whose sum is σ = 9942620. Its totient is φ = 9942618.

The previous prime is 9942617. The next prime is 9942629. The reversal of 9942619 is 9162499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9942619 - 2¹ = 9942617 is a prime.

It is a super-2 number, since 2×9942619² = 197711345158322, which contains 22 as substring.

Together with 9942617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9942617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971309 + 4971310.

It is an arithmetic number, because the mean of its divisors is an integer number (4971310).

Almost surely, 2^9942619 is an apocalyptic number.

9942619 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942619 is an equidigital number, since it uses as much as digits as its factorization.

9942619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 9942619 is about 3153.1918749102. The cubic root of 9942619 is about 215.0305995748.

The spelling of 9942619 in words is "nine million, nine hundred forty-two thousand, six hundred nineteen".