869953 has 16 divisors (see below), whose sum is σ = 1085440. Its totient is φ = 680400.

The previous prime is 869951. The next prime is 869959. The reversal of 869953 is 359968.

It is not a de Polignac number, because 869953 - 2¹ = 869951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4018 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (67840).

2⁸⁶⁹⁹⁵³ is an apocalyptic number.

It is an amenable number.

869953 is a deficient number, since it is larger than the sum of its proper divisors (215487).

869953 is a wasteful number, since it uses less digits than its factorization.

869953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its digits is 58320, while the sum is 40.

The square root of 869953 is about 932.7127103240. The cubic root of 869953 is about 95.4623079786.

The spelling of 869953 in words is "eight hundred sixty-nine thousand, nine hundred fifty-three".