963869 has 4 divisors (see below), whose sum is σ = 987420. Its totient is φ = 940320.

The previous prime is 963863. The next prime is 963871. The reversal of 963869 is 968369.

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

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 438244 = 725^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 963869 - 2¹² = 959773 is a prime.

It is a super-2 number, since 2×963869² = 1858086898322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 23509 = 963869 / (9 + 6 + 3 + 8 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11714 + ... + 11795.

It is an arithmetic number, because the mean of its divisors is an integer number (246855).

2⁹⁶³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

963869 is a deficient number, since it is larger than the sum of its proper divisors (23551).

963869 is a wasteful number, since it uses less digits than its factorization.

963869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23550.

The product of its digits is 69984, while the sum is 41.

The square root of 963869 is about 981.7683026050. The cubic root of 963869 is about 98.7808299828.

The spelling of 963869 in words is "nine hundred sixty-three thousand, eight hundred sixty-nine".