4047899 has 4 divisors (see below), whose sum is σ = 4114320. Its totient is φ = 3981480.

The previous prime is 4047847. The next prime is 4047929. The reversal of 4047899 is 9987404.

4047899 = 227² + 228² + ... + 287².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4047899 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4047829) 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, 33119 + ... + 33240.

It is an arithmetic number, because the mean of its divisors is an integer number (1028580).

Almost surely, 2^4047899 is an apocalyptic number.

4047899 is a deficient number, since it is larger than the sum of its proper divisors (66421).

4047899 is an equidigital number, since it uses as much as digits as its factorization.

4047899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66420.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 4047899 is about 2011.9391143869. The cubic root of 4047899 is about 159.3712170831.

It can be divided in two parts, 4047 and 899, that multiplied together give a triangular number (3638253 = T₂₆₉₇).

The spelling of 4047899 in words is "four million, forty-seven thousand, eight hundred ninety-nine".