620049071 has 4 divisors (see below), whose sum is σ = 636807192. Its totient is φ = 603290952.

The previous prime is 620049061. The next prime is 620049077. The reversal of 620049071 is 170940026.

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 620049071 - 2²⁶ = 552940207 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 (620049077) 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, 8379005 + ... + 8379078.

It is an arithmetic number, because the mean of its divisors is an integer number (159201798).

Almost surely, 2^620049071 is an apocalyptic number.

620049071 is a deficient number, since it is larger than the sum of its proper divisors (16758121).

620049071 is a wasteful number, since it uses less digits than its factorization.

620049071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16758120.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 620049071 is about 24900.7845458732. The cubic root of 620049071 is about 852.7243939362.

Adding to 620049071 its reverse (170940026), we get a palindrome (790989097).

The spelling of 620049071 in words is "six hundred twenty million, forty-nine thousand, seventy-one".