1620760676 has 12 divisors (see below), whose sum is σ = 2862353340. Its totient is φ = 802945440.

The previous prime is 1620760663. The next prime is 1620760697. The reversal of 1620760676 is 6760670261.

It can be written as a sum of positive squares in 2 ways, for example, as 1083726400 + 537034276 = 32920^2 + 23174^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858235 + ... + 1859106.

It is an arithmetic number, because the mean of its divisors is an integer number (238529445).

Almost surely, 2^1620760676 is an apocalyptic number.

It is an amenable number.

1620760676 is a deficient number, since it is larger than the sum of its proper divisors (1241592664).

1620760676 is a wasteful number, since it uses less digits than its factorization.

1620760676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717454 (or 3717452 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1620760676 is about 40258.6720595700. The cubic root of 1620760676 is about 1174.6440874049.

The spelling of 1620760676 in words is "one billion, six hundred twenty million, seven hundred sixty thousand, six hundred seventy-six".