3257049947 has 2 divisors, whose sum is σ = 3257049948. Its totient is φ = 3257049946.

The previous prime is 3257049899. The next prime is 3257049989. The reversal of 3257049947 is 7499407523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3257049947 - 2⁶ = 3257049883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3257049895 and 3257049904.

It is not a weakly prime, because it can be changed into another prime (3257049997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628524973 + 1628524974.

It is an arithmetic number, because the mean of its divisors is an integer number (1628524974).

Almost surely, 2^3257049947 is an apocalyptic number.

3257049947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3257049947 is an equidigital number, since it uses as much as digits as its factorization.

3257049947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 3257049947 is about 57070.5698850117. The cubic root of 3257049947 is about 1482.3183089102.

The spelling of 3257049947 in words is "three billion, two hundred fifty-seven million, forty-nine thousand, nine hundred forty-seven".