620631098 has 24 divisors (see below), whose sum is σ = 969378516. Its totient is φ = 297986880.

The previous prime is 620631091. The next prime is 620631101. The reversal of 620631098 is 890136026.

620631098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 610435849 + 10195249 = 24707^2 + 3193^2 .

It is not an unprimeable number, because it can be changed into a prime (620631091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262136 + ... + 264492.

Almost surely, 2^620631098 is an apocalyptic number.

620631098 is a deficient number, since it is larger than the sum of its proper divisors (348747418).

620631098 is a wasteful number, since it uses less digits than its factorization.

620631098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 620631098 is about 24912.4687255198. The cubic root of 620631098 is about 852.9911219709.

The spelling of 620631098 in words is "six hundred twenty million, six hundred thirty-one thousand, ninety-eight".