1972227 has 16 divisors (see below), whose sum is σ = 2780928. Its totient is φ = 1240800.

The previous prime is 1972207. The next prime is 1972231. The reversal of 1972227 is 7222791.

It is a happy number.

It is not a de Polignac number, because 1972227 - 2⁷ = 1972099 is a prime.

1972227 is a lucky number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1972194 and 1972203.

It is not an unprimeable number, because it can be changed into a prime (1972207) 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, 6828 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (173808).

2^1972227 is an apocalyptic number.

1972227 is a deficient number, since it is larger than the sum of its proper divisors (808701).

1972227 is a wasteful number, since it uses less digits than its factorization.

1972227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its digits is 3528, while the sum is 30.

The square root of 1972227 is about 1404.3599965821. The cubic root of 1972227 is about 125.4061879942.

The spelling of 1972227 in words is "one million, nine hundred seventy-two thousand, two hundred twenty-seven".