2928505 has 16 divisors (see below), whose sum is σ = 3763584. Its totient is φ = 2179840.

The previous prime is 2928491. The next prime is 2928509. The reversal of 2928505 is 5058292.

It is a happy number.

It is not a de Polignac number, because 2928505 - 2⁷ = 2928377 is a prime.

It is a super-2 number, since 2×2928505² = 17152283070050, which contains 22 as substring.

It is a Duffinian number.

2928505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2928509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11004 + ... + 11266.

It is an arithmetic number, because the mean of its divisors is an integer number (235224).

2^2928505 is an apocalyptic number.

It is an amenable number.

2928505 is a deficient number, since it is larger than the sum of its proper divisors (835079).

2928505 is a wasteful number, since it uses less digits than its factorization.

2928505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2928505 is about 1711.2875269808. The cubic root of 2928505 is about 143.0700261787.

The spelling of 2928505 in words is "two million, nine hundred twenty-eight thousand, five hundred five".