19496957 has 2 divisors, whose sum is σ = 19496958. Its totient is φ = 19496956.

The previous prime is 19496947. The next prime is 19496959. The reversal of 19496957 is 75969491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18267076 + 1229881 = 4274^2 + 1109^2 .

It is a cyclic number.

It is not a de Polignac number, because 19496957 - 2⁴ = 19496941 is a prime.

Together with 19496959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19496959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9748478 + 9748479.

It is an arithmetic number, because the mean of its divisors is an integer number (9748479).

Almost surely, 2^19496957 is an apocalyptic number.

It is an amenable number.

19496957 is a deficient number, since it is larger than the sum of its proper divisors (1).

19496957 is an equidigital number, since it uses as much as digits as its factorization.

19496957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 50.

The square root of 19496957 is about 4415.5358678194. The cubic root of 19496957 is about 269.1466289222.

The spelling of 19496957 in words is "nineteen million, four hundred ninety-six thousand, nine hundred fifty-seven".