7870625 has 30 divisors (see below), whose sum is σ = 11485386. Its totient is φ = 5376000.

The previous prime is 7870619. The next prime is 7870633. The reversal of 7870625 is 5260787.

It can be written as a sum of positive squares in 5 ways, for example, as 906304 + 6964321 = 952^2 + 2639^2 .

It is not a de Polignac number, because 7870625 - 2⁶ = 7870561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30497 + ... + 30753.

Almost surely, 2^7870625 is an apocalyptic number.

It is an amenable number.

7870625 is a deficient number, since it is larger than the sum of its proper divisors (3614761).

7870625 is an equidigital number, since it uses as much as digits as its factorization.

7870625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 7870625 is about 2805.4634198292. The cubic root of 7870625 is about 198.9160104476.

The spelling of 7870625 in words is "seven million, eight hundred seventy thousand, six hundred twenty-five".