949857 has 8 divisors (see below), whose sum is σ = 1271040. Its totient is φ = 630960.

The previous prime is 949853. The next prime is 949889. The reversal of 949857 is 758949.

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

It is not a de Polignac number, because 949857 - 2² = 949853 is a prime.

949857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (949853) 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, 1107 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (158880).

2⁹⁴⁹⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

949857 is a deficient number, since it is larger than the sum of its proper divisors (321183).

949857 is a wasteful number, since it uses less digits than its factorization.

949857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its digits is 90720, while the sum is 42.

The square root of 949857 is about 974.6060742680. The cubic root of 949857 is about 98.2998245173.

The spelling of 949857 in words is "nine hundred forty-nine thousand, eight hundred fifty-seven".