4172197 has 4 divisors (see below), whose sum is σ = 4306816. Its totient is φ = 4037580.

The previous prime is 4172183. The next prime is 4172239. The reversal of 4172197 is 7912714.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4172197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 134587 = 4172197 / (4 + 1 + 7 + 2 + 1 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172117) 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, 67263 + ... + 67324.

It is an arithmetic number, because the mean of its divisors is an integer number (1076704).

Almost surely, 2^4172197 is an apocalyptic number.

It is an amenable number.

4172197 is a deficient number, since it is larger than the sum of its proper divisors (134619).

4172197 is a wasteful number, since it uses less digits than its factorization.

4172197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134618.

The product of its digits is 3528, while the sum is 31.

The square root of 4172197 is about 2042.5956525950. The cubic root of 4172197 is about 160.9860590015.

The spelling of 4172197 in words is "four million, one hundred seventy-two thousand, one hundred ninety-seven".