949329391 has 4 divisors (see below), whose sum is σ = 949829112. Its totient is φ = 948829672.

The previous prime is 949329379. The next prime is 949329421. The reversal of 949329391 is 193923949.

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

It is a cyclic number.

It is not a de Polignac number, because 949329391 - 2¹³ = 949321199 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949329341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247000 + ... + 250813.

It is an arithmetic number, because the mean of its divisors is an integer number (237457278).

Almost surely, 2^949329391 is an apocalyptic number.

949329391 is a deficient number, since it is larger than the sum of its proper divisors (499721).

949329391 is a wasteful number, since it uses less digits than its factorization.

949329391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499720.

The product of its digits is 472392, while the sum is 49.

The square root of 949329391 is about 30811.1893798341. The cubic root of 949329391 is about 982.8162055685.

The spelling of 949329391 in words is "nine hundred forty-nine million, three hundred twenty-nine thousand, three hundred ninety-one".