6620499 has 12 divisors (see below), whose sum is σ = 9602736. Its totient is φ = 4395312.

The previous prime is 6620489. The next prime is 6620501. The reversal of 6620499 is 9940266.

It is not a de Polignac number, because 6620499 - 2⁷ = 6620371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6620489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (800228).

Almost surely, 2^6620499 is an apocalyptic number.

6620499 is a deficient number, since it is larger than the sum of its proper divisors (2982237).

6620499 is a wasteful number, since it uses less digits than its factorization.

6620499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 6620499 is about 2573.0330351552. The cubic root of 6620499 is about 187.7717446356.

The spelling of 6620499 in words is "six million, six hundred twenty thousand, four hundred ninety-nine".