2213447957 has 32 divisors (see below), whose sum is σ = 2817275904. Its totient is φ = 1695283200.

The previous prime is 2213447911. The next prime is 2213447963. The reversal of 2213447957 is 7597443122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213447957 is a prime.

It is a super-3 number, since 3×2213447957³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213447057) 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, 189857 + ... + 201177.

It is an arithmetic number, because the mean of its divisors is an integer number (88039872).

Almost surely, 2^2213447957 is an apocalyptic number.

It is an amenable number.

2213447957 is a deficient number, since it is larger than the sum of its proper divisors (603827947).

2213447957 is a wasteful number, since it uses less digits than its factorization.

2213447957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429.

The product of its digits is 423360, while the sum is 44.

The square root of 2213447957 is about 47047.2948956686. The cubic root of 2213447957 is about 1303.2361105925.

The spelling of 2213447957 in words is "two billion, two hundred thirteen million, four hundred forty-seven thousand, nine hundred fifty-seven".