620371543 has 4 divisors (see below), whose sum is σ = 676768968. Its totient is φ = 563974120.

The previous prime is 620371541. The next prime is 620371547. The reversal of 620371543 is 345173026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620371543 - 2¹ = 620371541 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 (620371541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28198696 + ... + 28198717.

It is an arithmetic number, because the mean of its divisors is an integer number (169192242).

Almost surely, 2^620371543 is an apocalyptic number.

620371543 is a deficient number, since it is larger than the sum of its proper divisors (56397425).

620371543 is a wasteful number, since it uses less digits than its factorization.

620371543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56397424.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 620371543 is about 24907.2588415506. The cubic root of 620371543 is about 852.8721951869.

The spelling of 620371543 in words is "six hundred twenty million, three hundred seventy-one thousand, five hundred forty-three".