620606996 has 12 divisors (see below), whose sum is σ = 1112551860. Its totient is φ = 302735040.

The previous prime is 620606983. The next prime is 620607059. The reversal of 620606996 is 699606026.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 269419396 + 351187600 = 16414^2 + 18740^2 .

It is a congruent number.

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, 1891931 + ... + 1892258.

It is an arithmetic number, because the mean of its divisors is an integer number (92712655).

Almost surely, 2^620606996 is an apocalyptic number.

It is an amenable number.

620606996 is a deficient number, since it is larger than the sum of its proper divisors (491944864).

620606996 is a wasteful number, since it uses less digits than its factorization.

620606996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784234 (or 3784232 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 620606996 is about 24911.9849871503. The cubic root of 620606996 is about 852.9800799535.

The spelling of 620606996 in words is "six hundred twenty million, six hundred six thousand, nine hundred ninety-six".