3489660949 has 4 divisors (see below), whose sum is σ = 3500016364. Its totient is φ = 3479305536.

The previous prime is 3489660943. The next prime is 3489660959. The reversal of 3489660949 is 9490669843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2499300049 + 990360900 = 49993^2 + 31470^2 .

It is a cyclic number.

It is not a de Polignac number, because 3489660949 - 2²⁹ = 2952790037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3489660893 and 3489660902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489660943) 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, 5177202 + ... + 5177875.

It is an arithmetic number, because the mean of its divisors is an integer number (875004091).

Almost surely, 2^3489660949 is an apocalyptic number.

It is an amenable number.

3489660949 is a deficient number, since it is larger than the sum of its proper divisors (10355415).

3489660949 is a wasteful number, since it uses less digits than its factorization.

3489660949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10355414.

The product of its (nonzero) digits is 10077696, while the sum is 58.

The square root of 3489660949 is about 59073.3522749471. The cubic root of 3489660949 is about 1516.7979900672.

The spelling of 3489660949 in words is "three billion, four hundred eighty-nine million, six hundred sixty thousand, nine hundred forty-nine".