949517921 has 8 divisors (see below), whose sum is σ = 1039501344. Its totient is φ = 860145120.

The previous prime is 949517917. The next prime is 949517977. The reversal of 949517921 is 129715949.

949517921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 949517921 - 2² = 949517917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949517911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149396 + ... + 155621.

It is an arithmetic number, because the mean of its divisors is an integer number (129937668).

Almost surely, 2^949517921 is an apocalyptic number.

It is an amenable number.

949517921 is a deficient number, since it is larger than the sum of its proper divisors (89983423).

949517921 is a wasteful number, since it uses less digits than its factorization.

949517921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305311.

The product of its digits is 204120, while the sum is 47.

The square root of 949517921 is about 30814.2486684326. The cubic root of 949517921 is about 982.8812613425.

The spelling of 949517921 in words is "nine hundred forty-nine million, five hundred seventeen thousand, nine hundred twenty-one".