881343605 has 8 divisors (see below), whose sum is σ = 1065332952. Its totient is φ = 699927808.

The previous prime is 881343599. The next prime is 881343637. The reversal of 881343605 is 506343188.

It can be written as a sum of positive squares in 4 ways, for example, as 5597956 + 875745649 = 2366^2 + 29593^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881343605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642632 + ... + 644001.

It is an arithmetic number, because the mean of its divisors is an integer number (133166619).

Almost surely, 2^881343605 is an apocalyptic number.

It is an amenable number.

881343605 is a deficient number, since it is larger than the sum of its proper divisors (183989347).

881343605 is a wasteful number, since it uses less digits than its factorization.

881343605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286775.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 881343605 is about 29687.4317683426. The cubic root of 881343605 is about 958.7714336856.

The spelling of 881343605 in words is "eight hundred eighty-one million, three hundred forty-three thousand, six hundred five".