1572947 has 4 divisors (see below), whose sum is σ = 1641360. Its totient is φ = 1504536.

The previous prime is 1572929. The next prime is 1572997. The reversal of 1572947 is 7492751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1572947 - 2¹⁰ = 1571923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1572997) 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, 34172 + ... + 34217.

It is an arithmetic number, because the mean of its divisors is an integer number (410340).

2^1572947 is an apocalyptic number.

1572947 is a deficient number, since it is larger than the sum of its proper divisors (68413).

1572947 is an equidigital number, since it uses as much as digits as its factorization.

1572947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68412.

The product of its digits is 17640, while the sum is 35.

The square root of 1572947 is about 1254.1718383061. The cubic root of 1572947 is about 116.2977635461.

The spelling of 1572947 in words is "one million, five hundred seventy-two thousand, nine hundred forty-seven".