19082797 has 4 divisors (see below), whose sum is σ = 19148220. Its totient is φ = 19017376.

The previous prime is 19082773. The next prime is 19082803. The reversal of 19082797 is 79728091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79728091 = 1607 ⋅49613.

It can be written as a sum of positive squares in 2 ways, for example, as 10118761 + 8964036 = 3181^2 + 2994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19082797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19082737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32272 + ... + 32857.

It is an arithmetic number, because the mean of its divisors is an integer number (4787055).

Almost surely, 2^19082797 is an apocalyptic number.

It is an amenable number.

19082797 is a deficient number, since it is larger than the sum of its proper divisors (65423).

19082797 is an equidigital number, since it uses as much as digits as its factorization.

19082797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65422.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 19082797 is about 4368.3860864168. The cubic root of 19082797 is about 267.2272096082.

The spelling of 19082797 in words is "nineteen million, eighty-two thousand, seven hundred ninety-seven".