3649453671 has 32 divisors (see below), whose sum is σ = 5280309760. Its totient is φ = 2234169216.

The previous prime is 3649453663. The next prime is 3649453751. The reversal of 3649453671 is 1763549463.

It is not a de Polignac number, because 3649453671 - 2³ = 3649453663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3649453671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649453651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581070 + ... + 587316.

It is an arithmetic number, because the mean of its divisors is an integer number (165009680).

Almost surely, 2^3649453671 is an apocalyptic number.

3649453671 is a deficient number, since it is larger than the sum of its proper divisors (1630856089).

3649453671 is a wasteful number, since it uses less digits than its factorization.

3649453671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583.

The product of its digits is 1632960, while the sum is 48.

The square root of 3649453671 is about 60410.7082477933. The cubic root of 3649453671 is about 1539.6049010323.

The spelling of 3649453671 in words is "three billion, six hundred forty-nine million, four hundred fifty-three thousand, six hundred seventy-one".