2027620861 has 8 divisors (see below), whose sum is σ = 2345200704. Its totient is φ = 1717020960.

The previous prime is 2027620849. The next prime is 2027620897. The reversal of 2027620861 is 1680267202.

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 2027620861 - 2¹⁹ = 2027096573 is a prime.

It is a super-2 number, since 2×2027620861² = 8222492711924762642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027620061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744360 + ... + 1745521.

It is an arithmetic number, because the mean of its divisors is an integer number (293150088).

Almost surely, 2^2027620861 is an apocalyptic number.

It is an amenable number.

2027620861 is a deficient number, since it is larger than the sum of its proper divisors (317579843).

2027620861 is an equidigital number, since it uses as much as digits as its factorization.

2027620861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489971.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2027620861 is about 45029.1112614939. Note that the first 3 decimals coincide. The cubic root of 2027620861 is about 1265.6945700037.

The spelling of 2027620861 in words is "two billion, twenty-seven million, six hundred twenty thousand, eight hundred sixty-one".