7915641 has 8 divisors (see below), whose sum is σ = 10567200. Its totient is φ = 5270592.

The previous prime is 7915631. The next prime is 7915643. The reversal of 7915641 is 1465197.

7915641 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7915641 - 2⁷ = 7915513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7915643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3810 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (1320900).

Almost surely, 2^7915641 is an apocalyptic number.

It is an amenable number.

7915641 is a deficient number, since it is larger than the sum of its proper divisors (2651559).

7915641 is a wasteful number, since it uses less digits than its factorization.

7915641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255.

The product of its digits is 7560, while the sum is 33.

The square root of 7915641 is about 2813.4748977021. The cubic root of 7915641 is about 199.2945227687.

It can be divided in two parts, 79156 and 41, that added together give a palindrome (79197).

The spelling of 7915641 in words is "seven million, nine hundred fifteen thousand, six hundred forty-one".