2920625 has 10 divisors (see below), whose sum is σ = 3650394. Its totient is φ = 2336000.

The previous prime is 2920591. The next prime is 2920633. The reversal of 2920625 is 5260292.

It can be written as a sum of positive squares in 5 ways, for example, as 414736 + 2505889 = 644^2 + 1583^2 .

It is not a de Polignac number, because 2920625 - 2¹⁶ = 2855089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2920594 and 2920603.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1712 + ... + 2961.

2^2920625 is an apocalyptic number.

2920625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2920625 is a deficient number, since it is larger than the sum of its proper divisors (729769).

2920625 is an frugal number, since it uses more digits than its factorization.

2920625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2920625 is about 1708.9836160713. The cubic root of 2920625 is about 142.9415869793.

The spelling of 2920625 in words is "two million, nine hundred twenty thousand, six hundred twenty-five".