6615494 has 4 divisors (see below), whose sum is σ = 9923244. Its totient is φ = 3307746.

The previous prime is 6615491. The next prime is 6615503. The reversal of 6615494 is 4945166.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653872 + ... + 1653875.

It is an arithmetic number, because the mean of its divisors is an integer number (2480811).

Almost surely, 2^6615494 is an apocalyptic number.

6615494 is a deficient number, since it is larger than the sum of its proper divisors (3307750).

6615494 is a wasteful number, since it uses less digits than its factorization.

6615494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307749.

The product of its digits is 25920, while the sum is 35.

The square root of 6615494 is about 2572.0602636797. The cubic root of 6615494 is about 187.7244151465.

The spelling of 6615494 in words is "six million, six hundred fifteen thousand, four hundred ninety-four".