620039998 has 8 divisors (see below), whose sum is σ = 930895992. Its totient is φ = 309741336.

The previous prime is 620039983. The next prime is 620040011. The reversal of 620039998 is 899930026.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136540 + ... + 141007.

It is an arithmetic number, because the mean of its divisors is an integer number (116361999).

Almost surely, 2^620039998 is an apocalyptic number.

620039998 is a deficient number, since it is larger than the sum of its proper divisors (310855994).

620039998 is a wasteful number, since it uses less digits than its factorization.

620039998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278666.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 620039998 is about 24900.6023621920. The cubic root of 620039998 is about 852.7202346922.

The spelling of 620039998 in words is "six hundred twenty million, thirty-nine thousand, nine hundred ninety-eight".