8992687442 has 8 divisors (see below), whose sum is σ = 13489674876. Its totient is φ = 4496129152.

The previous prime is 8992687423. The next prime is 8992687463. The reversal of 8992687442 is 2447862998.

It can be written as a sum of positive squares in 2 ways, for example, as 8277178441 + 715509001 = 90979^2 + 26749^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48443 + ... + 142590.

Almost surely, 2^8992687442 is an apocalyptic number.

8992687442 is a deficient number, since it is larger than the sum of its proper divisors (4496987434).

8992687442 is a wasteful number, since it uses less digits than its factorization.

8992687442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214572.

The product of its digits is 13934592, while the sum is 59.

The square root of 8992687442 is about 94829.7814085849. The cubic root of 8992687442 is about 2079.5203099012.

The spelling of 8992687442 in words is "eight billion, nine hundred ninety-two million, six hundred eighty-seven thousand, four hundred forty-two".