8870447261 has 4 divisors (see below), whose sum is σ = 9552789372. Its totient is φ = 8188105152.

The previous prime is 8870447227. The next prime is 8870447347. The reversal of 8870447261 is 1627440788.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 397244761 + 8473202500 = 19931^2 + 92050^2 .

It is a cyclic number.

It is not a de Polignac number, because 8870447261 - 2¹⁸ = 8870185117 is a prime.

It is a super-2 number, since 2×8870447261² (a number of 21 digits) 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 (8870447161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341171036 + ... + 341171061.

It is an arithmetic number, because the mean of its divisors is an integer number (2388197343).

Almost surely, 2^8870447261 is an apocalyptic number.

It is an amenable number.

8870447261 is a deficient number, since it is larger than the sum of its proper divisors (682342111).

8870447261 is a wasteful number, since it uses less digits than its factorization.

8870447261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682342110.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 8870447261 is about 94183.0518777131. The cubic root of 8870447261 is about 2070.0547848150.

The spelling of 8870447261 in words is "eight billion, eight hundred seventy million, four hundred forty-seven thousand, two hundred sixty-one".