621701016 has 64 divisors (see below), whose sum is σ = 1651920480. Its totient is φ = 194304000.

The previous prime is 621700987. The next prime is 621701021. The reversal of 621701016 is 610107126.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110266 + ... + 115766.

Almost surely, 2^621701016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621701016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825960240).

621701016 is an abundant number, since it is smaller than the sum of its proper divisors (1030219464).

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

621701016 is a wasteful number, since it uses less digits than its factorization.

621701016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 621701016 is about 24933.9330230912. The cubic root of 621701016 is about 853.4810032256.

The spelling of 621701016 in words is "six hundred twenty-one million, seven hundred one thousand, sixteen".