3640488817 has 8 divisors (see below), whose sum is σ = 4405297536. Its totient is φ = 2936864832.

The previous prime is 3640488811. The next prime is 3640488827. The reversal of 3640488817 is 7188840463.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3640488817 - 2²³ = 3632100209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640488811) 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, 15296053 + ... + 15296290.

It is an arithmetic number, because the mean of its divisors is an integer number (550662192).

Almost surely, 2^3640488817 is an apocalyptic number.

It is an amenable number.

3640488817 is a deficient number, since it is larger than the sum of its proper divisors (764808719).

3640488817 is a wasteful number, since it uses less digits than its factorization.

3640488817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30592367.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 3640488817 is about 60336.4634114397. The cubic root of 3640488817 is about 1538.3431915982.

The spelling of 3640488817 in words is "three billion, six hundred forty million, four hundred eighty-eight thousand, eight hundred seventeen".