2196870 has 64 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 524160.

The previous prime is 2196869. The next prime is 2196871. The reversal of 2196870 is 786912.

It is an interprime number because it is at equal distance from previous prime (2196869) and next prime (2196871).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16705 + ... + 16835.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2^2196870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2196870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927232).

2196870 is an abundant number, since it is smaller than the sum of its proper divisors (3657594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2196870 is a wasteful number, since it uses less digits than its factorization.

2196870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2196870 is about 1482.1841990792. The cubic root of 2196870 is about 129.9974358469.

The spelling of 2196870 in words is "two million, one hundred ninety-six thousand, eight hundred seventy".