2190487647 has 8 divisors (see below), whose sum is σ = 2921380144. Its totient is φ = 1459960128.

The previous prime is 2190487643. The next prime is 2190487693. The reversal of 2190487647 is 7467840912.

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

It is not a de Polignac number, because 2190487647 - 2² = 2190487643 is a prime.

It is a super-2 number, since 2×2190487647² = 9596472263319193218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2190487596 and 2190487605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190487643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76918 + ... + 101475.

It is an arithmetic number, because the mean of its divisors is an integer number (365172518).

Almost surely, 2^2190487647 is an apocalyptic number.

2190487647 is a deficient number, since it is larger than the sum of its proper divisors (730892497).

2190487647 is a wasteful number, since it uses less digits than its factorization.

2190487647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182489.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2190487647 is about 46802.6457264971. The cubic root of 2190487647 is about 1298.7142409740.

The spelling of 2190487647 in words is "two billion, one hundred ninety million, four hundred eighty-seven thousand, six hundred forty-seven".