620197974 has 48 divisors (see below), whose sum is σ = 1480484304. Its totient is φ = 186072000.

The previous prime is 620197957. The next prime is 620197979. The reversal of 620197974 is 479791026.

620197974 is a `hidden beast` number, since 620 + 19 + 7 + 9 + 7 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620197979) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4492 + ... + 35504.

It is an arithmetic number, because the mean of its divisors is an integer number (30843423).

Almost surely, 2^620197974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620197974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740242152).

620197974 is an abundant number, since it is smaller than the sum of its proper divisors (860286330).

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

620197974 is a wasteful number, since it uses less digits than its factorization.

620197974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31133 (or 31130 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 620197974 is about 24903.7742922634. The cubic root of 620197974 is about 852.7926482426.

The spelling of 620197974 in words is "six hundred twenty million, one hundred ninety-seven thousand, nine hundred seventy-four".