19427193 has 6 divisors (see below), whose sum is σ = 28061514. Its totient is φ = 12951456.

The previous prime is 19427189. The next prime is 19427197. The reversal of 19427193 is 39172491.

It is an interprime number because it is at equal distance from previous prime (19427189) and next prime (19427197).

It can be written as a sum of positive squares in only one way, i.e., 18766224 + 660969 = 4332^2 + 813^2 .

It is not a de Polignac number, because 19427193 - 2² = 19427189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19427197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1079280 + ... + 1079297.

It is an arithmetic number, because the mean of its divisors is an integer number (4676919).

Almost surely, 2^19427193 is an apocalyptic number.

It is an amenable number.

19427193 is a deficient number, since it is larger than the sum of its proper divisors (8634321).

19427193 is a wasteful number, since it uses less digits than its factorization.

19427193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158583 (or 2158580 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 19427193 is about 4407.6289544380. The cubic root of 19427193 is about 268.8252251651.

The spelling of 19427193 in words is "nineteen million, four hundred twenty-seven thousand, one hundred ninety-three".