8962219561 has 9 divisors (see below), whose sum is σ = 9190121893. Its totient is φ = 8739842080.

The previous prime is 8962219549. The next prime is 8962219589. The reversal of 8962219561 is 1659122698.

The square root of 8962219561 is 94669.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 346667161 + 8615552400 = 18619^2 + 92820^2 .

It is not a de Polignac number, because 8962219561 - 2¹⁷ = 8962088489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8962219961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3880275 + ... + 3882583.

Almost surely, 2^8962219561 is an apocalyptic number.

8962219561 is the 94669-th square number.

8962219561 is the 47335-th centered octagonal number.

It is an amenable number.

8962219561 is a deficient number, since it is larger than the sum of its proper divisors (227902332).

8962219561 is an frugal number, since it uses more digits than its factorization.

8962219561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700 (or 2350 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The cubic root of 8962219561 is about 2077.1691304112.

Multiplying 8962219561 by its sum of digits (49), we get a square (439148758489 = 662683²).

The spelling of 8962219561 in words is "eight billion, nine hundred sixty-two million, two hundred nineteen thousand, five hundred sixty-one".