620349383 has 2 divisors, whose sum is σ = 620349384. Its totient is φ = 620349382.

The previous prime is 620349377. The next prime is 620349391. The reversal of 620349383 is 383943026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620349383 - 2⁶ = 620349319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620342383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310174691 + 310174692.

It is an arithmetic number, because the mean of its divisors is an integer number (310174692).

Almost surely, 2^620349383 is an apocalyptic number.

620349383 is a deficient number, since it is larger than the sum of its proper divisors (1).

620349383 is an equidigital number, since it uses as much as digits as its factorization.

620349383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 620349383 is about 24906.8139873409. The cubic root of 620349383 is about 852.8620400505.

It can be divided in two parts, 62034 and 9383, that added together give a palindrome (71417).

The spelling of 620349383 in words is "six hundred twenty million, three hundred forty-nine thousand, three hundred eighty-three".