621098 has 8 divisors (see below), whose sum is σ = 943680. Its totient is φ = 306540.

The previous prime is 621097. The next prime is 621113. The reversal of 621098 is 890126.

621098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (621097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1808 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (117960).

2⁶²¹⁰⁹⁸ is an apocalyptic number.

621098 is a deficient number, since it is larger than the sum of its proper divisors (322582).

621098 is a wasteful number, since it uses less digits than its factorization.

621098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 621098 is about 788.0977096782. The cubic root of 621098 is about 85.3204970655.

The spelling of 621098 in words is "six hundred twenty-one thousand, ninety-eight".