2196457 has 4 divisors (see below), whose sum is σ = 2312080. Its totient is φ = 2080836.

The previous prime is 2196449. The next prime is 2196473. The reversal of 2196457 is 7546912.

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 2196457 - 2³ = 2196449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2196407) 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, 57783 + ... + 57820.

It is an arithmetic number, because the mean of its divisors is an integer number (578020).

2^2196457 is an apocalyptic number.

It is an amenable number.

2196457 is a deficient number, since it is larger than the sum of its proper divisors (115623).

2196457 is a wasteful number, since it uses less digits than its factorization.

2196457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115622.

The product of its digits is 15120, while the sum is 34.

The square root of 2196457 is about 1482.0448711156. The cubic root of 2196457 is about 129.9892890584.

The spelling of 2196457 in words is "two million, one hundred ninety-six thousand, four hundred fifty-seven".