620039477 has 4 divisors (see below), whose sum is σ = 620510880. Its totient is φ = 619568076.

The previous prime is 620039473. The next prime is 620039513. The reversal of 620039477 is 774930026.

620039477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620039477 - 2² = 620039473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620039477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620039471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233723 + ... + 236360.

It is an arithmetic number, because the mean of its divisors is an integer number (155127720).

Almost surely, 2^620039477 is an apocalyptic number.

It is an amenable number.

620039477 is a deficient number, since it is larger than the sum of its proper divisors (471403).

620039477 is a wasteful number, since it uses less digits than its factorization.

620039477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471402.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 620039477 is about 24900.5919005955. The cubic root of 620039477 is about 852.7199958542.

The spelling of 620039477 in words is "six hundred twenty million, thirty-nine thousand, four hundred seventy-seven".