6620488 has 24 divisors (see below), whose sum is σ = 14440950. Its totient is φ = 2837184.

The previous prime is 6620461. The next prime is 6620489. The reversal of 6620488 is 8840266.

It can be written as a sum of positive squares in only one way, i.e., 6563844 + 56644 = 2562^2 + 238^2 .

It is a super-2 number, since 2×6620488² = 87661722716288, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 8053 + ... + 8836.

Almost surely, 2^6620488 is an apocalyptic number.

It is an amenable number.

6620488 is an abundant number, since it is smaller than the sum of its proper divisors (7820462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6620488 is a wasteful number, since it uses less digits than its factorization.

6620488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16909 (or 16898 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 6620488 is about 2573.0308975992. The cubic root of 6620488 is about 187.7716406409.

The spelling of 6620488 in words is "six million, six hundred twenty thousand, four hundred eighty-eight".