2928999825 has 48 divisors (see below), whose sum is σ = 5505867840. Its totient is φ = 1525789440.

The previous prime is 2928999811. The next prime is 2928999859. The reversal of 2928999825 is 5289998292.

It is not a de Polignac number, because 2928999825 - 2⁵ = 2928999793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21432 + ... + 79481.

It is an arithmetic number, because the mean of its divisors is an integer number (114705580).

Almost surely, 2^2928999825 is an apocalyptic number.

2928999825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2928999825 is a deficient number, since it is larger than the sum of its proper divisors (2576868015).

2928999825 is a wasteful number, since it uses less digits than its factorization.

2928999825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100975 (or 100964 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 63.

The square root of 2928999825 is about 54120.2348941687. The cubic root of 2928999825 is about 1430.7808383253.

The spelling of 2928999825 in words is "two billion, nine hundred twenty-eight million, nine hundred ninety-nine thousand, eight hundred twenty-five".