19480969 has 2 divisors, whose sum is σ = 19480970. Its totient is φ = 19480968.

The previous prime is 19480939. The next prime is 19480973. The reversal of 19480969 is 96908491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19474569 + 6400 = 4413^2 + 80^2 .

It is an emirp because it is prime and its reverse (96908491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19480969 - 2⁹ = 19480457 is a prime.

It is a super-2 number, since 2×19480969² = 759016306357922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19480919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9740484 + 9740485.

It is an arithmetic number, because the mean of its divisors is an integer number (9740485).

Almost surely, 2^19480969 is an apocalyptic number.

It is an amenable number.

19480969 is a deficient number, since it is larger than the sum of its proper divisors (1).

19480969 is an equidigital number, since it uses as much as digits as its factorization.

19480969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 19480969 is about 4413.7250707311. The cubic root of 19480969 is about 269.0730397793.

It can be divided in two parts, 19480 and 969, that added together give a square (20449 = 143²).

The spelling of 19480969 in words is "nineteen million, four hundred eighty thousand, nine hundred sixty-nine".