8406725 has 12 divisors (see below), whose sum is σ = 10493376. Its totient is φ = 6680880.

The previous prime is 8406719. The next prime is 8406737. The reversal of 8406725 is 5276048.

It is not a de Polignac number, because 8406725 - 2¹² = 8402629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8406691 and 8406700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3044 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (874448).

Almost surely, 2^8406725 is an apocalyptic number.

It is an amenable number.

8406725 is a deficient number, since it is larger than the sum of its proper divisors (2086651).

8406725 is a wasteful number, since it uses less digits than its factorization.

8406725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 8406725 is about 2899.4352898452. The cubic root of 8406725 is about 203.3335050314. Note that the first 3 decimals are identical.

The spelling of 8406725 in words is "eight million, four hundred six thousand, seven hundred twenty-five".