873636397 has 8 divisors (see below), whose sum is σ = 951328800. Its totient is φ = 799115184.

The previous prime is 873636377. The next prime is 873636403. The reversal of 873636397 is 793636378.

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-873636397 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 (873636317) 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, 792223 + ... + 793324.

It is an arithmetic number, because the mean of its divisors is an integer number (118916100).

Almost surely, 2^873636397 is an apocalyptic number.

It is an amenable number.

873636397 is a deficient number, since it is larger than the sum of its proper divisors (77692403).

873636397 is a wasteful number, since it uses less digits than its factorization.

873636397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585595.

The product of its digits is 3429216, while the sum is 52.

The square root of 873636397 is about 29557.3408310017. The cubic root of 873636397 is about 955.9684799777.

The spelling of 873636397 in words is "eight hundred seventy-three million, six hundred thirty-six thousand, three hundred ninety-seven".