2921925 has 12 divisors (see below), whose sum is σ = 4831040. Its totient is φ = 1558320.

The previous prime is 2921923. The next prime is 2921929. The reversal of 2921925 is 5291292.

2921925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2921925 - 2¹ = 2921923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2921892 and 2921901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19405 + ... + 19554.

2^2921925 is an apocalyptic number.

2921925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2921925 is a deficient number, since it is larger than the sum of its proper divisors (1909115).

2921925 is a wasteful number, since it uses less digits than its factorization.

2921925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38972 (or 38967 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 2921925 is about 1709.3639167831. The cubic root of 2921925 is about 142.9627920865.

The spelling of 2921925 in words is "two million, nine hundred twenty-one thousand, nine hundred twenty-five".