7163641 has 4 divisors (see below), whose sum is σ = 7254400. Its totient is φ = 7072884.

The previous prime is 7163633. The next prime is 7163659. The reversal of 7163641 is 1463617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7163641 - 2³ = 7163633 is a prime.

It is a Duffinian number.

7163641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7163041) 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, 45261 + ... + 45418.

It is an arithmetic number, because the mean of its divisors is an integer number (1813600).

Almost surely, 2^7163641 is an apocalyptic number.

It is an amenable number.

7163641 is a deficient number, since it is larger than the sum of its proper divisors (90759).

7163641 is an equidigital number, since it uses as much as digits as its factorization.

7163641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90758.

The product of its digits is 3024, while the sum is 28.

The square root of 7163641 is about 2676.4978983739. The cubic root of 7163641 is about 192.7722890937.

Subtracting from 7163641 its product of digits (3024), we obtain a palindrome (7160617).

The spelling of 7163641 in words is "seven million, one hundred sixty-three thousand, six hundred forty-one".