19029197 has 4 divisors (see below), whose sum is σ = 20759136. Its totient is φ = 17299260.

The previous prime is 19029187. The next prime is 19029209. The reversal of 19029197 is 79192091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 19029197 - 2⁴ = 19029181 is a prime.

It is a super-2 number, since 2×19029197² = 724220676929618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 19029197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19029187) 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, 864953 + ... + 864974.

It is an arithmetic number, because the mean of its divisors is an integer number (5189784).

Almost surely, 2^19029197 is an apocalyptic number.

It is an amenable number.

19029197 is a deficient number, since it is larger than the sum of its proper divisors (1729939).

19029197 is a wasteful number, since it uses less digits than its factorization.

19029197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729938.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 19029197 is about 4362.2467834821. The cubic root of 19029197 is about 266.9767779417.

The spelling of 19029197 in words is "nineteen million, twenty-nine thousand, one hundred ninety-seven".