2021961471 has 8 divisors (see below), whose sum is σ = 2730074880. Its totient is φ = 1330911192.

The previous prime is 2021961463. The next prime is 2021961499. The reversal of 2021961471 is 1741691202.

It is a happy number.

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

It is not a de Polignac number, because 2021961471 - 2³ = 2021961463 is a prime.

It is a super-3 number, since 3×2021961471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021961401) 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, 4265505 + ... + 4265978.

It is an arithmetic number, because the mean of its divisors is an integer number (341259360).

Almost surely, 2^2021961471 is an apocalyptic number.

2021961471 is a deficient number, since it is larger than the sum of its proper divisors (708113409).

2021961471 is an equidigital number, since it uses as much as digits as its factorization.

2021961471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531565.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2021961471 is about 44966.2258923295. The cubic root of 2021961471 is about 1264.5158923936.

The spelling of 2021961471 in words is "two billion, twenty-one million, nine hundred sixty-one thousand, four hundred seventy-one".