4378625 has 16 divisors (see below), whose sum is σ = 5705856. Its totient is φ = 3348400.

The previous prime is 4378609. The next prime is 4378631. The reversal of 4378625 is 5268734.

It is a happy number.

It is not a de Polignac number, because 4378625 - 2⁴ = 4378609 is a prime.

It is a d-powerful number, because it can be written as 4² + 3¹¹ + 7⁴ + 8⁴ + 6² + 2²² + 5⁴ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114 + ... + 3636.

It is an arithmetic number, because the mean of its divisors is an integer number (356616).

It is a Proth number, since it is equal to 1069 ⋅ 2¹² + 1 and 1069 < 2¹².

Almost surely, 2^4378625 is an apocalyptic number.

It is an amenable number.

4378625 is a deficient number, since it is larger than the sum of its proper divisors (1327231).

4378625 is a wasteful number, since it uses less digits than its factorization.

4378625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1551 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 4378625 is about 2092.5164276536. The cubic root of 4378625 is about 163.5984749072.

The spelling of 4378625 in words is "four million, three hundred seventy-eight thousand, six hundred twenty-five".