620801893 has 4 divisors (see below), whose sum is σ = 624270240. Its totient is φ = 617333548.

The previous prime is 620801891. The next prime is 620801957. The reversal of 620801893 is 398108026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 620801893 - 2¹ = 620801891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620801891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733905 + ... + 1734262.

It is an arithmetic number, because the mean of its divisors is an integer number (156067560).

Almost surely, 2^620801893 is an apocalyptic number.

It is an amenable number.

620801893 is a deficient number, since it is larger than the sum of its proper divisors (3468347).

620801893 is a wasteful number, since it uses less digits than its factorization.

620801893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468346.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 620801893 is about 24915.8963916613. The cubic root of 620801893 is about 853.0693612862.

The spelling of 620801893 in words is "six hundred twenty million, eight hundred one thousand, eight hundred ninety-three".