621001214 has 16 divisors (see below), whose sum is σ = 941692128. Its totient is φ = 307111392.

The previous prime is 621001193. The next prime is 621001243. The reversal of 621001214 is 412100126.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 621001192 and 621001201.

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 7 ways as a sum of consecutive naturals, for example, 253604 + ... + 256040.

It is an arithmetic number, because the mean of its divisors is an integer number (58855758).

Almost surely, 2^621001214 is an apocalyptic number.

621001214 is a deficient number, since it is larger than the sum of its proper divisors (320690914).

621001214 is a wasteful number, since it uses less digits than its factorization.

621001214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 621001214 is about 24919.8959468133. The cubic root of 621001214 is about 853.1606499059.

The spelling of 621001214 in words is "six hundred twenty-one million, one thousand, two hundred fourteen".