6620460437 has 2 divisors, whose sum is σ = 6620460438. Its totient is φ = 6620460436.

The previous prime is 6620460419. The next prime is 6620460443. The reversal of 6620460437 is 7340640266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4729863076 + 1890597361 = 68774^2 + 43481^2 .

It is a cyclic number.

It is not a de Polignac number, because 6620460437 - 2¹⁶ = 6620394901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6620460437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6620460337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310230218 + 3310230219.

It is an arithmetic number, because the mean of its divisors is an integer number (3310230219).

Almost surely, 2^6620460437 is an apocalyptic number.

It is an amenable number.

6620460437 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620460437 is an equidigital number, since it uses as much as digits as its factorization.

6620460437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 6620460437 is about 81366.2118879821. The cubic root of 6620460437 is about 1877.7138005807.

The spelling of 6620460437 in words is "six billion, six hundred twenty million, four hundred sixty thousand, four hundred thirty-seven".