3949623959 has 2 divisors, whose sum is σ = 3949623960. Its totient is φ = 3949623958.

The previous prime is 3949623949. The next prime is 3949624001. The reversal of 3949623959 is 9593269493.

3949623959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3949623959 - 2⁴ = 3949623943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3949623898 and 3949623907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949623919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974811979 + 1974811980.

It is an arithmetic number, because the mean of its divisors is an integer number (1974811980).

Almost surely, 2^3949623959 is an apocalyptic number.

3949623959 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949623959 is an equidigital number, since it uses as much as digits as its factorization.

3949623959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14171760, while the sum is 59.

The square root of 3949623959 is about 62846.0337571115. The cubic root of 3949623959 is about 1580.7089643987.

The spelling of 3949623959 in words is "three billion, nine hundred forty-nine million, six hundred twenty-three thousand, nine hundred fifty-nine".