7641915 has 16 divisors (see below), whose sum is σ = 12261408. Its totient is φ = 4064256.

The previous prime is 7641913. The next prime is 7641923. The reversal of 7641915 is 5191467.

7641915 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7641915 - 2¹ = 7641913 is a prime.

7641915 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7641913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9717 + ... + 10473.

It is an arithmetic number, because the mean of its divisors is an integer number (766338).

Almost surely, 2^7641915 is an apocalyptic number.

7641915 is a deficient number, since it is larger than the sum of its proper divisors (4619493).

7641915 is a wasteful number, since it uses less digits than its factorization.

7641915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

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

The square root of 7641915 is about 2764.4013818547. The cubic root of 7641915 is about 196.9702945066.

The spelling of 7641915 in words is "seven million, six hundred forty-one thousand, nine hundred fifteen".