2587723949 has 2 divisors, whose sum is σ = 2587723950. Its totient is φ = 2587723948.

The previous prime is 2587723937. The next prime is 2587724023. The reversal of 2587723949 is 9493277852.

2587723949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2104515625 + 483208324 = 45875^2 + 21982^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587723949 - 2¹² = 2587719853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2587723894 and 2587723903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2587723909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293861974 + 1293861975.

It is an arithmetic number, because the mean of its divisors is an integer number (1293861975).

Almost surely, 2^2587723949 is an apocalyptic number.

It is an amenable number.

2587723949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587723949 is an equidigital number, since it uses as much as digits as its factorization.

2587723949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 2587723949 is about 50869.6761243867. The cubic root of 2587723949 is about 1372.9012962105.

The spelling of 2587723949 in words is "two billion, five hundred eighty-seven million, seven hundred twenty-three thousand, nine hundred forty-nine".