3620749447 has 16 divisors (see below), whose sum is σ = 4322972160. Its totient is φ = 2965086432.

The previous prime is 3620749393. The next prime is 3620749453. The reversal of 3620749447 is 7449470263.

It is not a de Polignac number, because 3620749447 - 2¹¹ = 3620747399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3620749397 and 3620749406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620749477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129429 + ... + 154897.

It is an arithmetic number, because the mean of its divisors is an integer number (270185760).

Almost surely, 2^3620749447 is an apocalyptic number.

3620749447 is a deficient number, since it is larger than the sum of its proper divisors (702222713).

3620749447 is a wasteful number, since it uses less digits than its factorization.

3620749447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26382.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 3620749447 is about 60172.6636189557. The cubic root of 3620749447 is about 1535.5577621290.

The spelling of 3620749447 in words is "three billion, six hundred twenty million, seven hundred forty-nine thousand, four hundred forty-seven".