19427097 has 16 divisors (see below), whose sum is σ = 26837568. Its totient is φ = 12492480.

The previous prime is 19427081. The next prime is 19427113. The reversal of 19427097 is 79072491.

It is an interprime number because it is at equal distance from previous prime (19427081) and next prime (19427113).

It is not a de Polignac number, because 19427097 - 2⁴ = 19427081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19427077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8698 + ... + 10700.

It is an arithmetic number, because the mean of its divisors is an integer number (1677348).

Almost surely, 2^19427097 is an apocalyptic number.

It is an amenable number.

19427097 is a deficient number, since it is larger than the sum of its proper divisors (7410471).

19427097 is a wasteful number, since it uses less digits than its factorization.

19427097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 19427097 is about 4407.6180642156. The cubic root of 19427097 is about 268.8247823620.

The spelling of 19427097 in words is "nineteen million, four hundred twenty-seven thousand, ninety-seven".