2027117421 has 48 divisors (see below), whose sum is σ = 3483462528. Its totient is φ = 1153958400.

The previous prime is 2027117419. The next prime is 2027117423. The reversal of 2027117421 is 1247117202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2027117419) and next prime (2027117423).

It is not a de Polignac number, because 2027117421 - 2¹ = 2027117419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027117423) 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 47 ways as a sum of consecutive naturals, for example, 475861 + ... + 480101.

It is an arithmetic number, because the mean of its divisors is an integer number (72572136).

Almost surely, 2^2027117421 is an apocalyptic number.

2027117421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2027117421 is a deficient number, since it is larger than the sum of its proper divisors (1456345107).

2027117421 is an equidigital number, since it uses as much as digits as its factorization.

2027117421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2027117421 is about 45023.5207530464. The cubic root of 2027117421 is about 1265.5898078116.

The spelling of 2027117421 in words is "two billion, twenty-seven million, one hundred seventeen thousand, four hundred twenty-one".