7615641 has 16 divisors (see below), whose sum is σ = 11206080. Its totient is φ = 4561920.

The previous prime is 7615607. The next prime is 7615649. The reversal of 7615641 is 1465167.

It is not a de Polignac number, because 7615641 - 2⁶ = 7615577 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7615599 and 7615608.

It is not an unprimeable number, because it can be changed into a prime (7615649) 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 15 ways as a sum of consecutive naturals, for example, 1641 + ... + 4233.

It is an arithmetic number, because the mean of its divisors is an integer number (700380).

Almost surely, 2^7615641 is an apocalyptic number.

It is an amenable number.

7615641 is a deficient number, since it is larger than the sum of its proper divisors (3590439).

7615641 is a wasteful number, since it uses less digits than its factorization.

7615641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696.

The product of its digits is 5040, while the sum is 30.

The square root of 7615641 is about 2759.6450858761. The cubic root of 7615641 is about 196.7442979295.

It can be divided in two parts, 7615 and 641, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 7615641 in words is "seven million, six hundred fifteen thousand, six hundred forty-one".