867874399 has 8 divisors (see below), whose sum is σ = 992399360. Its totient is φ = 743485176.

The previous prime is 867874369. The next prime is 867874409. The reversal of 867874399 is 993478768.

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

It is a de Polignac number, because none of the positive numbers 2^k-867874399 is a prime.

It is a super-2 number, since 2×867874399² = 1506411944879222402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867874309) 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, 19839 + ... + 46144.

It is an arithmetic number, because the mean of its divisors is an integer number (124049920).

Almost surely, 2^867874399 is an apocalyptic number.

867874399 is a deficient number, since it is larger than the sum of its proper divisors (124524961).

867874399 is a wasteful number, since it uses less digits than its factorization.

867874399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67869.

The product of its digits is 18289152, while the sum is 61.

The square root of 867874399 is about 29459.7080603322. The cubic root of 867874399 is about 953.8621716478.

The spelling of 867874399 in words is "eight hundred sixty-seven million, eight hundred seventy-four thousand, three hundred ninety-nine".