7172641 has 4 divisors (see below), whose sum is σ = 8197312. Its totient is φ = 6147972.

The previous prime is 7172639. The next prime is 7172677. The reversal of 7172641 is 1462717.

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 7172641 - 2¹ = 7172639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7172681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512325 + ... + 512338.

It is an arithmetic number, because the mean of its divisors is an integer number (2049328).

Almost surely, 2^7172641 is an apocalyptic number.

It is an amenable number.

7172641 is a deficient number, since it is larger than the sum of its proper divisors (1024671).

7172641 is a wasteful number, since it uses less digits than its factorization.

7172641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024670.

The product of its digits is 2352, while the sum is 28.

The square root of 7172641 is about 2678.1786721576. The cubic root of 7172641 is about 192.8529847689.

The spelling of 7172641 in words is "seven million, one hundred seventy-two thousand, six hundred forty-one".