620166073 has 8 divisors (see below), whose sum is σ = 647440200. Its totient is φ = 593284608.

The previous prime is 620166059. The next prime is 620166083. The reversal of 620166073 is 370661026.

It can be written as a sum of positive squares in 4 ways, for example, as 55771024 + 564395049 = 7468^2 + 23757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620166073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620166083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94936 + ... + 101257.

It is an arithmetic number, because the mean of its divisors is an integer number (80930025).

Almost surely, 2^620166073 is an apocalyptic number.

It is an amenable number.

620166073 is a deficient number, since it is larger than the sum of its proper divisors (27274127).

620166073 is a wasteful number, since it uses less digits than its factorization.

620166073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196331.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 620166073 is about 24903.1337987812. The cubic root of 620166073 is about 852.7780263498.

The spelling of 620166073 in words is "six hundred twenty million, one hundred sixty-six thousand, seventy-three".