949757921 has 32 divisors (see below), whose sum is σ = 1242581760. Its totient is φ = 706185216.

The previous prime is 949757909. The next prime is 949757923. The reversal of 949757921 is 129757949.

949757921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 949757921 - 2⁶ = 949757857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (949757923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77981 + ... + 89333.

It is an arithmetic number, because the mean of its divisors is an integer number (38830680).

Almost surely, 2^949757921 is an apocalyptic number.

It is an amenable number.

949757921 is a deficient number, since it is larger than the sum of its proper divisors (292823839).

949757921 is a wasteful number, since it uses less digits than its factorization.

949757921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433.

The product of its digits is 1428840, while the sum is 53.

The square root of 949757921 is about 30818.1427247003. The cubic root of 949757921 is about 982.9640653373.

The spelling of 949757921 in words is "nine hundred forty-nine million, seven hundred fifty-seven thousand, nine hundred twenty-one".