881279549 has 4 divisors (see below), whose sum is σ = 886686336. Its totient is φ = 875872764.

The previous prime is 881279537. The next prime is 881279551. The reversal of 881279549 is 945972188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 881279549 - 2⁴ = 881279533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 881279549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881279449) 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, 2703149 + ... + 2703474.

It is an arithmetic number, because the mean of its divisors is an integer number (221671584).

Almost surely, 2^881279549 is an apocalyptic number.

It is an amenable number.

881279549 is a deficient number, since it is larger than the sum of its proper divisors (5406787).

881279549 is a wasteful number, since it uses less digits than its factorization.

881279549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406786.

The product of its digits is 1451520, while the sum is 53.

The square root of 881279549 is about 29686.3529083652. The cubic root of 881279549 is about 958.7482053062.

The spelling of 881279549 in words is "eight hundred eighty-one million, two hundred seventy-nine thousand, five hundred forty-nine".