869311399 has 8 divisors (see below), whose sum is σ = 962494848. Its totient is φ = 778487160.

The previous prime is 869311357. The next prime is 869311403. The reversal of 869311399 is 993113968.

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

It is not a de Polignac number, because 869311399 - 2⁷ = 869311271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869311309) 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, 589027 + ... + 590500.

It is an arithmetic number, because the mean of its divisors is an integer number (120311856).

Almost surely, 2^869311399 is an apocalyptic number.

869311399 is a deficient number, since it is larger than the sum of its proper divisors (93183449).

869311399 is a wasteful number, since it uses less digits than its factorization.

869311399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179605.

The product of its digits is 314928, while the sum is 49.

The square root of 869311399 is about 29484.0872166666. The cubic root of 869311399 is about 954.3883399951.

The spelling of 869311399 in words is "eight hundred sixty-nine million, three hundred eleven thousand, three hundred ninety-nine".