2628896929 has 4 divisors (see below), whose sum is σ = 2629000384. Its totient is φ = 2628793476.

The previous prime is 2628896927. The next prime is 2628896939. The reversal of 2628896929 is 9296988262.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2628896929 - 2¹ = 2628896927 is a prime.

It is a super-2 number, since 2×2628896929² = 13822198126611262082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2628896927) 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, 15604 + ... + 74170.

It is an arithmetic number, because the mean of its divisors is an integer number (657250096).

Almost surely, 2^2628896929 is an apocalyptic number.

It is an amenable number.

2628896929 is a deficient number, since it is larger than the sum of its proper divisors (103455).

2628896929 is an equidigital number, since it uses as much as digits as its factorization.

2628896929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103454.

The product of its digits is 13436928, while the sum is 61.

The square root of 2628896929 is about 51272.7698588637. The cubic root of 2628896929 is about 1380.1443749041.

The spelling of 2628896929 in words is "two billion, six hundred twenty-eight million, eight hundred ninety-six thousand, nine hundred twenty-nine".