2287691953 has 2 divisors, whose sum is σ = 2287691954. Its totient is φ = 2287691952.

The previous prime is 2287691933. The next prime is 2287691957. The reversal of 2287691953 is 3591967822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1800474624 + 487217329 = 42432^2 + 22073^2 .

It is a cyclic number.

It is not a de Polignac number, because 2287691953 - 2¹⁷ = 2287560881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2287691953.

It is not a weakly prime, because it can be changed into another prime (2287691957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143845976 + 1143845977.

It is an arithmetic number, because the mean of its divisors is an integer number (1143845977).

Almost surely, 2^2287691953 is an apocalyptic number.

It is an amenable number.

2287691953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287691953 is an equidigital number, since it uses as much as digits as its factorization.

2287691953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 2287691953 is about 47829.8228409849. The cubic root of 2287691953 is about 1317.6473153749.

The spelling of 2287691953 in words is "two billion, two hundred eighty-seven million, six hundred ninety-one thousand, nine hundred fifty-three".