6620481 has 32 divisors (see below), whose sum is σ = 11704320. Its totient is φ = 3616272.

The previous prime is 6620461. The next prime is 6620489. The reversal of 6620481 is 1840266.

It is not a de Polignac number, because 6620481 - 2⁷ = 6620353 is a prime.

It is a super-2 number, since 2×6620481² = 87661537342722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 3586 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (365760).

Almost surely, 2^6620481 is an apocalyptic number.

It is an amenable number.

6620481 is a deficient number, since it is larger than the sum of its proper divisors (5083839).

6620481 is a wasteful number, since it uses less digits than its factorization.

6620481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6620481 is about 2573.0295373353. The cubic root of 6620481 is about 187.7715744624.

The spelling of 6620481 in words is "six million, six hundred twenty thousand, four hundred eighty-one".