4408638487 has 4 divisors (see below), whose sum is σ = 4809423816. Its totient is φ = 4007853160.

The previous prime is 4408638461. The next prime is 4408638517. The reversal of 4408638487 is 7848368044.

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

It is a cyclic number.

It is not a de Polignac number, because 4408638487 - 2²³ = 4400249879 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 (4408638187) 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, 200392648 + ... + 200392669.

It is an arithmetic number, because the mean of its divisors is an integer number (1202355954).

Almost surely, 2^4408638487 is an apocalyptic number.

4408638487 is a deficient number, since it is larger than the sum of its proper divisors (400785329).

4408638487 is a wasteful number, since it uses less digits than its factorization.

4408638487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400785328.

The product of its (nonzero) digits is 4128768, while the sum is 52.

The square root of 4408638487 is about 66397.5789242349. The cubic root of 4408638487 is about 1639.7142183722.

The spelling of 4408638487 in words is "four billion, four hundred eight million, six hundred thirty-eight thousand, four hundred eighty-seven".