621049 has 16 divisors (see below), whose sum is σ = 753984. Its totient is φ = 504000.

The previous prime is 621043. The next prime is 621059. The reversal of 621049 is 940126.

It is a cyclic number.

It is not a de Polignac number, because 621049 - 2⁵ = 621017 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (621043) 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 in 15 ways as a sum of consecutive naturals, for example, 6099 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (47124).

2⁶²¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

621049 is a deficient number, since it is larger than the sum of its proper divisors (132935).

621049 is a wasteful number, since it uses less digits than its factorization.

621049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 621049 is about 788.0666215492. The cubic root of 621049 is about 85.3182532895.

It can be divided in two parts, 62 and 1049, that added together give a palindrome (1111).

The spelling of 621049 in words is "six hundred twenty-one thousand, forty-nine".