620537413 has 2 divisors, whose sum is σ = 620537414. Its totient is φ = 620537412.

The previous prime is 620537399. The next prime is 620537453. The reversal of 620537413 is 314735026.

620537413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614197089 + 6340324 = 24783^2 + 2518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620537413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620537453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310268706 + 310268707.

It is an arithmetic number, because the mean of its divisors is an integer number (310268707).

Almost surely, 2^620537413 is an apocalyptic number.

It is an amenable number.

620537413 is a deficient number, since it is larger than the sum of its proper divisors (1).

620537413 is an equidigital number, since it uses as much as digits as its factorization.

620537413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 620537413 is about 24910.5883712128. The cubic root of 620537413 is about 852.9481998041.

The spelling of 620537413 in words is "six hundred twenty million, five hundred thirty-seven thousand, four hundred thirteen".