4190887 has 4 divisors (see below), whose sum is σ = 4411480. Its totient is φ = 3970296.

The previous prime is 4190867. The next prime is 4190903. The reversal of 4190887 is 7880914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7880914 = 2 ⋅3940457.

It is a cyclic number.

It is not a de Polignac number, because 4190887 - 2⁷ = 4190759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4190867) 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, 110268 + ... + 110305.

It is an arithmetic number, because the mean of its divisors is an integer number (1102870).

Almost surely, 2^4190887 is an apocalyptic number.

4190887 is a deficient number, since it is larger than the sum of its proper divisors (220593).

4190887 is a wasteful number, since it uses less digits than its factorization.

4190887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220592.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 4190887 is about 2047.1656015086. The cubic root of 4190887 is about 161.2260882356.

The spelling of 4190887 in words is "four million, one hundred ninety thousand, eight hundred eighty-seven".