2198446087 has 2 divisors, whose sum is σ = 2198446088. Its totient is φ = 2198446086.

The previous prime is 2198446043. The next prime is 2198446147. The reversal of 2198446087 is 7806448912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2198446087 - 2²³ = 2190057479 is a prime.

It is a super-2 number, since 2×2198446087² = 9666330394891223138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2198446087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2198446687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099223043 + 1099223044.

It is an arithmetic number, because the mean of its divisors is an integer number (1099223044).

Almost surely, 2^2198446087 is an apocalyptic number.

2198446087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198446087 is an equidigital number, since it uses as much as digits as its factorization.

2198446087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 2198446087 is about 46887.5899039394. The cubic root of 2198446087 is about 1300.2851617041.

The spelling of 2198446087 in words is "two billion, one hundred ninety-eight million, four hundred forty-six thousand, eighty-seven".