3445705257 has 4 divisors (see below), whose sum is σ = 4594273680. Its totient is φ = 2297136836.

The previous prime is 3445705223. The next prime is 3445705297. The reversal of 3445705257 is 7525075443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7525075443 = 3 ⋅2508358481.

It is a cyclic number.

It is not a de Polignac number, because 3445705257 - 2²⁶ = 3378596393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3445705217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574284207 + ... + 574284212.

It is an arithmetic number, because the mean of its divisors is an integer number (1148568420).

Almost surely, 2^3445705257 is an apocalyptic number.

It is an amenable number.

3445705257 is a deficient number, since it is larger than the sum of its proper divisors (1148568423).

3445705257 is a wasteful number, since it uses less digits than its factorization.

3445705257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148568422.

The product of its (nonzero) digits is 588000, while the sum is 42.

The square root of 3445705257 is about 58700.1299572667. The cubic root of 3445705257 is about 1510.4025441699.

The spelling of 3445705257 in words is "three billion, four hundred forty-five million, seven hundred five thousand, two hundred fifty-seven".