2214690997 has 4 divisors (see below), whose sum is σ = 2344966956. Its totient is φ = 2084415040.

The previous prime is 2214690967. The next prime is 2214691021. The reversal of 2214690997 is 7990964122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 861481201 + 1353209796 = 29351^2 + 36786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214690997 - 2¹⁹ = 2214166709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2214690997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2214690917) 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, 65137954 + ... + 65137987.

It is an arithmetic number, because the mean of its divisors is an integer number (586241739).

Almost surely, 2^2214690997 is an apocalyptic number.

It is an amenable number.

2214690997 is a deficient number, since it is larger than the sum of its proper divisors (130275959).

2214690997 is a wasteful number, since it uses less digits than its factorization.

2214690997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130275958.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 2214690997 is about 47060.5035778412. The cubic root of 2214690997 is about 1303.4800243852.

The spelling of 2214690997 in words is "two billion, two hundred fourteen million, six hundred ninety thousand, nine hundred ninety-seven".