2889487690 has 8 divisors (see below), whose sum is σ = 5201077860. Its totient is φ = 1155795072.

The previous prime is 2889487661. The next prime is 2889487691. The reversal of 2889487690 is 967849882.

It can be written as a sum of positive squares in 2 ways, for example, as 2766654801 + 122832889 = 52599^2 + 11083^2 .

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

It is a super-2 number, since 2×2889487690² = 16698278221323072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2889487691) 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, 144474375 + ... + 144474394.

Almost surely, 2^2889487690 is an apocalyptic number.

2889487690 is a deficient number, since it is larger than the sum of its proper divisors (2311590170).

2889487690 is a wasteful number, since it uses less digits than its factorization.

2889487690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288948776.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The square root of 2889487690 is about 53753.9551102986. The cubic root of 2889487690 is about 1424.3179565666.

The spelling of 2889487690 in words is "two billion, eight hundred eighty-nine million, four hundred eighty-seven thousand, six hundred ninety".