620421105 has 16 divisors (see below), whose sum is σ = 995302080. Its totient is φ = 330015168.

The previous prime is 620421101. The next prime is 620421119. The reversal of 620421105 is 501124026.

It is not a de Polignac number, because 620421105 - 2² = 620421101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620421101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48882 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (62206380).

Almost surely, 2^620421105 is an apocalyptic number.

It is an amenable number.

620421105 is a deficient number, since it is larger than the sum of its proper divisors (374880975).

620421105 is a wasteful number, since it uses less digits than its factorization.

620421105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109520.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 620421105 is about 24908.2537525215. The cubic root of 620421105 is about 852.8949068058.

The spelling of 620421105 in words is "six hundred twenty million, four hundred twenty-one thousand, one hundred five".