620852977 has 4 divisors (see below), whose sum is σ = 620907840. Its totient is φ = 620798116.

The previous prime is 620852957. The next prime is 620852983. The reversal of 620852977 is 779258026.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 620852977 - 2¹¹ = 620850929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620852917) 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, 3493 + ... + 35410.

It is an arithmetic number, because the mean of its divisors is an integer number (155226960).

Almost surely, 2^620852977 is an apocalyptic number.

It is an amenable number.

620852977 is a deficient number, since it is larger than the sum of its proper divisors (54863).

620852977 is a wasteful number, since it uses less digits than its factorization.

620852977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54862.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 620852977 is about 24916.9214992543. The cubic root of 620852977 is about 853.0927595182.

The spelling of 620852977 in words is "six hundred twenty million, eight hundred fifty-two thousand, nine hundred seventy-seven".