7321003641 has 56 divisors (see below), whose sum is σ = 13282625664. Its totient is φ = 3937299840.

The previous prime is 7321003621. The next prime is 7321003681. The reversal of 7321003641 is 1463001237.

7321003641 is a `hidden beast` number, since 7 + 3 + 2 + 10 + 0 + 3 + 641 = 666.

It is not a de Polignac number, because 7321003641 - 2⁵ = 7321003609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7321003621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 44556 + ... + 128946.

It is an arithmetic number, because the mean of its divisors is an integer number (237189744).

Almost surely, 2^7321003641 is an apocalyptic number.

It is an amenable number.

7321003641 is a deficient number, since it is larger than the sum of its proper divisors (5961622023).

7321003641 is an equidigital number, since it uses as much as digits as its factorization.

7321003641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84433 (or 84418 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 7321003641 is about 85562.8636792855. The cubic root of 7321003641 is about 1941.7361120375.

Adding to 7321003641 its reverse (1463001237), we get a palindrome (8784004878).

The spelling of 7321003641 in words is "seven billion, three hundred twenty-one million, three thousand, six hundred forty-one".