3457729949 has 2 divisors, whose sum is σ = 3457729950. Its totient is φ = 3457729948.

The previous prime is 3457729939. The next prime is 3457729969. The reversal of 3457729949 is 9499277543.

3457729949 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., 2350504324 + 1107225625 = 48482^2 + 33275^2 .

It is a cyclic number.

It is not a de Polignac number, because 3457729949 - 2¹² = 3457725853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3457729939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728864974 + 1728864975.

It is an arithmetic number, because the mean of its divisors is an integer number (1728864975).

Almost surely, 2^3457729949 is an apocalyptic number.

It is an amenable number.

3457729949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3457729949 is an equidigital number, since it uses as much as digits as its factorization.

3457729949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 59.

The square root of 3457729949 is about 58802.4655010315. The cubic root of 3457729949 is about 1512.1574862147.

The spelling of 3457729949 in words is "three billion, four hundred fifty-seven million, seven hundred twenty-nine thousand, nine hundred forty-nine".