2235724639 has 2 divisors, whose sum is σ = 2235724640. Its totient is φ = 2235724638.

The previous prime is 2235724607. The next prime is 2235724657. The reversal of 2235724639 is 9364275322.

2235724639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2235724639 - 2⁵ = 2235724607 is a prime.

It is a super-2 number, since 2×2235724639² = 9996929322863360642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2235724595 and 2235724604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2235724669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117862319 + 1117862320.

It is an arithmetic number, because the mean of its divisors is an integer number (1117862320).

Almost surely, 2^2235724639 is an apocalyptic number.

2235724639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235724639 is an equidigital number, since it uses as much as digits as its factorization.

2235724639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 43.

The square root of 2235724639 is about 47283.4499481584. The cubic root of 2235724639 is about 1307.5935540618.

The spelling of 2235724639 in words is "two billion, two hundred thirty-five million, seven hundred twenty-four thousand, six hundred thirty-nine".