620789898 has 8 divisors (see below), whose sum is σ = 1241579808. Its totient is φ = 206929964.

The previous prime is 620789893. The next prime is 620789927. The reversal of 620789898 is 898987026.

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

620789898 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (620789893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51732486 + ... + 51732497.

It is an arithmetic number, because the mean of its divisors is an integer number (155197476).

Almost surely, 2^620789898 is an apocalyptic number.

620789898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620789898 is a wasteful number, since it uses less digits than its factorization.

620789898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103464988.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 620789898 is about 24915.6556807161. The cubic root of 620789898 is about 853.0638669769.

The spelling of 620789898 in words is "six hundred twenty million, seven hundred eighty-nine thousand, eight hundred ninety-eight".