620417984 has 14 divisors (see below), whose sum is σ = 1231142064. Its totient is φ = 310208960.

The previous prime is 620417983. The next prime is 620418037. The reversal of 620417984 is 489714026.

620417984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620417983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4846952 + ... + 4847079.

Almost surely, 2^620417984 is an apocalyptic number.

620417984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

620417984 is a deficient number, since it is larger than the sum of its proper divisors (610724080).

620417984 is an equidigital number, since it uses as much as digits as its factorization.

620417984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9694043 (or 9694033 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 620417984 is about 24908.1911025269. The cubic root of 620417984 is about 852.8934766537.

The spelling of 620417984 in words is "six hundred twenty million, four hundred seventeen thousand, nine hundred eighty-four".