7641895 has 16 divisors (see below), whose sum is σ = 9721440. Its totient is φ = 5750784.

The previous prime is 7641883. The next prime is 7641913. The reversal of 7641895 is 5981467.

It is a 14-Lehmer number, since φ(7641895) divides (7641895-1)¹⁴.

It is a cyclic number.

It is not a de Polignac number, because 7641895 - 2⁵ = 7641863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24259 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (607590).

Almost surely, 2^7641895 is an apocalyptic number.

7641895 is a deficient number, since it is larger than the sum of its proper divisors (2079545).

7641895 is a wasteful number, since it uses less digits than its factorization.

7641895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its digits is 60480, while the sum is 40.

The square root of 7641895 is about 2764.3977644326. The cubic root of 7641895 is about 196.9701226732.

The spelling of 7641895 in words is "seven million, six hundred forty-one thousand, eight hundred ninety-five".