1620414337 has 2 divisors, whose sum is σ = 1620414338. Its totient is φ = 1620414336.

The previous prime is 1620414311. The next prime is 1620414343. The reversal of 1620414337 is 7334140261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1080502641 + 539911696 = 32871^2 + 23236^2 .

It is a cyclic number.

It is not a de Polignac number, because 1620414337 - 2¹¹ = 1620412289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1620414299 and 1620414308.

It is not a weakly prime, because it can be changed into another prime (1620414137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810207168 + 810207169.

It is an arithmetic number, because the mean of its divisors is an integer number (810207169).

Almost surely, 2^1620414337 is an apocalyptic number.

It is an amenable number.

1620414337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1620414337 is an equidigital number, since it uses as much as digits as its factorization.

1620414337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1620414337 is about 40254.3704086898. The cubic root of 1620414337 is about 1174.5604118719.

Adding to 1620414337 its reverse (7334140261), we get a palindrome (8954554598).

The spelling of 1620414337 in words is "one billion, six hundred twenty million, four hundred fourteen thousand, three hundred thirty-seven".