2197852457 has 4 divisors (see below), whose sum is σ = 2203651920. Its totient is φ = 2192052996.

The previous prime is 2197852453. The next prime is 2197852487. The reversal of 2197852457 is 7542587912.

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 not a de Polignac number, because 2197852457 - 2² = 2197852453 is a prime.

It is a super-4 number, since 4×2197852457⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197852453) 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, 2899163 + ... + 2899920.

It is an arithmetic number, because the mean of its divisors is an integer number (550912980).

Almost surely, 2^2197852457 is an apocalyptic number.

It is an amenable number.

2197852457 is a deficient number, since it is larger than the sum of its proper divisors (5799463).

2197852457 is an equidigital number, since it uses as much as digits as its factorization.

2197852457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799462.

The product of its digits is 1411200, while the sum is 50.

The square root of 2197852457 is about 46881.2591234493. The cubic root of 2197852457 is about 1300.1681157337.

The spelling of 2197852457 in words is "two billion, one hundred ninety-seven million, eight hundred fifty-two thousand, four hundred fifty-seven".