620498 has 6 divisors (see below), whose sum is σ = 932421. Its totient is φ = 309692.

The previous prime is 620491. The next prime is 620507. The reversal of 620498 is 894026.

620498 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 134689 = 697^2 + 367^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=557.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620498.

It is not an unprimeable number, because it can be changed into a prime (620491) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 836 + ... + 1392.

2⁶²⁰⁴⁹⁸ is an apocalyptic number.

620498 is a deficient number, since it is larger than the sum of its proper divisors (311923).

620498 is an frugal number, since it uses more digits than its factorization.

620498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 620498 is about 787.7169542418. The cubic root of 620498 is about 85.2930141286.

The spelling of 620498 in words is "six hundred twenty thousand, four hundred ninety-eight".