2197961401 has 8 divisors (see below), whose sum is σ = 2314656000. Its totient is φ = 2081368080.

The previous prime is 2197961387. The next prime is 2197961407. The reversal of 2197961401 is 1041697912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2197961401 - 2⁷ = 2197961273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2197961407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21471 + ... + 69691.

It is an arithmetic number, because the mean of its divisors is an integer number (289332000).

Almost surely, 2^2197961401 is an apocalyptic number.

It is an amenable number.

2197961401 is a deficient number, since it is larger than the sum of its proper divisors (116694599).

2197961401 is a wasteful number, since it uses less digits than its factorization.

2197961401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50639.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2197961401 is about 46882.4210232364. The cubic root of 2197961401 is about 1300.1895977907.

The spelling of 2197961401 in words is "two billion, one hundred ninety-seven million, nine hundred sixty-one thousand, four hundred one".