949891613 has 4 divisors (see below), whose sum is σ = 1036245408. Its totient is φ = 863537820.

The previous prime is 949891597. The next prime is 949891627. The reversal of 949891613 is 316198949.

949891613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 949891613 - 2⁴ = 949891597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949891633) 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, 43176881 + ... + 43176902.

It is an arithmetic number, because the mean of its divisors is an integer number (259061352).

Almost surely, 2^949891613 is an apocalyptic number.

It is an amenable number.

949891613 is a deficient number, since it is larger than the sum of its proper divisors (86353795).

949891613 is a wasteful number, since it uses less digits than its factorization.

949891613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86353794.

The product of its digits is 419904, while the sum is 50.

The square root of 949891613 is about 30820.3116953739. The cubic root of 949891613 is about 983.0101852531.

The spelling of 949891613 in words is "nine hundred forty-nine million, eight hundred ninety-one thousand, six hundred thirteen".