6291616 has 12 divisors (see below), whose sum is σ = 12386682. Its totient is φ = 3145792.

The previous prime is 6291611. The next prime is 6291619. The reversal of 6291616 is 6161926.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 41616 = 2500^2 + 204^2 .

It is not an unprimeable number, because it can be changed into a prime (6291611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98275 + ... + 98338.

Almost surely, 2^6291616 is an apocalyptic number.

It is an amenable number.

6291616 is a deficient number, since it is larger than the sum of its proper divisors (6095066).

6291616 is a wasteful number, since it uses less digits than its factorization.

6291616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196623 (or 196615 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 6291616 is about 2508.3093908049. The cubic root of 6291616 is about 184.6095099270.

The spelling of 6291616 in words is "six million, two hundred ninety-one thousand, six hundred sixteen".