2731925 has 24 divisors (see below), whose sum is σ = 3946176. Its totient is φ = 1837440.

The previous prime is 2731921. The next prime is 2731933. The reversal of 2731925 is 5291372.

2731925 = 168² + 169² + ... + 234².

It is not a de Polignac number, because 2731925 - 2² = 2731921 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 (2731921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11609 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (164424).

2^2731925 is an apocalyptic number.

2731925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2731925 is a deficient number, since it is larger than the sum of its proper divisors (1214251).

2731925 is a wasteful number, since it uses less digits than its factorization.

2731925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 312 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 2731925 is about 1652.8535930324. The cubic root of 2731925 is about 139.7943408932.

It can be divided in two parts, 273 and 1925, that multiplied together give a palindrome (525525).

The spelling of 2731925 in words is "two million, seven hundred thirty-one thousand, nine hundred twenty-five".