2896081621 has 4 divisors (see below), whose sum is σ = 2911244544. Its totient is φ = 2880918700.

The previous prime is 2896081613. The next prime is 2896081637. The reversal of 2896081621 is 1261806982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2896081621 - 2³ = 2896081613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2896081681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7581175 + ... + 7581556.

It is an arithmetic number, because the mean of its divisors is an integer number (727811136).

Almost surely, 2^2896081621 is an apocalyptic number.

It is an amenable number.

2896081621 is a deficient number, since it is larger than the sum of its proper divisors (15162923).

2896081621 is a wasteful number, since it uses less digits than its factorization.

2896081621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162922.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 2896081621 is about 53815.2545380954. The cubic root of 2896081621 is about 1425.4005843744.

The spelling of 2896081621 in words is "two billion, eight hundred ninety-six million, eighty-one thousand, six hundred twenty-one".