620369 has 8 divisors (see below), whose sum is σ = 661440. Its totient is φ = 580176.

The previous prime is 620363. The next prime is 620377. The reversal of 620369 is 963026.

620369 = T₄₂ + T₄₃ + ... + T₁₅₅.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620369 - 2¹⁶ = 554833 is a prime.

It is a super-2 number, since 2×620369² = 769715392322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620369.

It is not an unprimeable number, because it can be changed into a prime (620363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799 + ... + 2115.

It is an arithmetic number, because the mean of its divisors is an integer number (82680).

2⁶²⁰³⁶⁹ is an apocalyptic number.

It is an amenable number.

620369 is a deficient number, since it is larger than the sum of its proper divisors (41071).

620369 is a wasteful number, since it uses less digits than its factorization.

620369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 620369 is about 787.6350677820. The cubic root of 620369 is about 85.2871029833.

It can be divided in two parts, 620 and 369, that added together give a palindrome (989).

The spelling of 620369 in words is "six hundred twenty thousand, three hundred sixty-nine".