620773546 has 8 divisors (see below), whose sum is σ = 933924420. Its totient is φ = 309465408.

The previous prime is 620773537. The next prime is 620773553. The reversal of 620773546 is 645377026.

It can be written as a sum of positive squares in 2 ways, for example, as 511257321 + 109516225 = 22611^2 + 10465^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 620773499 and 620773508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459841 + ... + 461188.

Almost surely, 2^620773546 is an apocalyptic number.

620773546 is a deficient number, since it is larger than the sum of its proper divisors (313150874).

620773546 is a wasteful number, since it uses less digits than its factorization.

620773546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921368.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 620773546 is about 24915.3275314614. The cubic root of 620773546 is about 853.0563768299.

The spelling of 620773546 in words is "six hundred twenty million, seven hundred seventy-three thousand, five hundred forty-six".