872279397437 has 8 divisors (see below), whose sum is σ = 1004167315776. Its totient is φ = 742210623072.

The previous prime is 872279397403. The next prime is 872279397491. The reversal of 872279397437 is 734793972278.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 872279397437 - 2⁸ = 872279397181 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 (872279397497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454784963 + ... + 454786880.

It is an arithmetic number, because the mean of its divisors is an integer number (125520914472).

Almost surely, 2^872279397437 is an apocalyptic number.

It is an amenable number.

872279397437 is a deficient number, since it is larger than the sum of its proper divisors (131887918339).

872279397437 is a wasteful number, since it uses less digits than its factorization.

872279397437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909571987.

The product of its digits is 224042112, while the sum is 68.

The spelling of 872279397437 in words is "eight hundred seventy-two billion, two hundred seventy-nine million, three hundred ninety-seven thousand, four hundred thirty-seven".