620773801 has 4 divisors (see below), whose sum is σ = 622967632. Its totient is φ = 618579972.

The previous prime is 620773799. The next prime is 620773807. The reversal of 620773801 is 108377026.

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 620773801 - 2¹ = 620773799 is a prime.

It is a super-2 number, since 2×620773801² = 770720224015975202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620773807) 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, 1096491 + ... + 1097056.

It is an arithmetic number, because the mean of its divisors is an integer number (155741908).

Almost surely, 2^620773801 is an apocalyptic number.

It is an amenable number.

620773801 is a deficient number, since it is larger than the sum of its proper divisors (2193831).

620773801 is a wasteful number, since it uses less digits than its factorization.

620773801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193830.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 620773801 is about 24915.3326487928. The cubic root of 620773801 is about 853.0564936354.

It can be divided in two parts, 6207 and 73801, that added together give a palindrome (80008).

The spelling of 620773801 in words is "six hundred twenty million, seven hundred seventy-three thousand, eight hundred one".