620777201 has 8 divisors (see below), whose sum is σ = 699057408. Its totient is φ = 546138000.

The previous prime is 620777147. The next prime is 620777237. The reversal of 620777201 is 102777026.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620777201 - 2⁶ = 620777137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620777401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909890 + ... + 910571.

It is an arithmetic number, because the mean of its divisors is an integer number (87382176).

Almost surely, 2^620777201 is an apocalyptic number.

It is an amenable number.

620777201 is a deficient number, since it is larger than the sum of its proper divisors (78280207).

620777201 is a wasteful number, since it uses less digits than its factorization.

620777201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820503.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 620777201 is about 24915.4008797772. The cubic root of 620777201 is about 853.0580510394.

The spelling of 620777201 in words is "six hundred twenty million, seven hundred seventy-seven thousand, two hundred one".