2235691673 has 2 divisors, whose sum is σ = 2235691674. Its totient is φ = 2235691672.

The previous prime is 2235691643. The next prime is 2235691681. The reversal of 2235691673 is 3761965322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151109184 + 1084582489 = 33928^2 + 32933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2235691673 - 2⁸ = 2235691417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2235691643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117845836 + 1117845837.

It is an arithmetic number, because the mean of its divisors is an integer number (1117845837).

Almost surely, 2^2235691673 is an apocalyptic number.

It is an amenable number.

2235691673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235691673 is an equidigital number, since it uses as much as digits as its factorization.

2235691673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 44.

The square root of 2235691673 is about 47283.1013470986. The cubic root of 2235691673 is about 1307.5871271610.

The spelling of 2235691673 in words is "two billion, two hundred thirty-five million, six hundred ninety-one thousand, six hundred seventy-three".