8761625 has 16 divisors (see below), whose sum is σ = 11316240. Its totient is φ = 6764800.

The previous prime is 8761619. The next prime is 8761631. The reversal of 8761625 is 5261678.

It is an interprime number because it is at equal distance from previous prime (8761619) and next prime (8761631).

It can be written as a sum of positive squares in 8 ways, for example, as 678976 + 8082649 = 824^2 + 2843^2 .

It is not a de Polignac number, because 8761625 - 2¹⁴ = 8745241 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2417 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (707265).

Almost surely, 2^8761625 is an apocalyptic number.

8761625 is the 2417-th pentagonal number.

It is an amenable number.

8761625 is a deficient number, since it is larger than the sum of its proper divisors (2554615).

8761625 is a wasteful number, since it uses less digits than its factorization.

8761625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2451 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 8761625 is about 2960.0042229700. The cubic root of 8761625 is about 206.1554816380.

It can be divided in two parts, 87616 and 25, that multiplied together give a square (2190400 = 1480²).

The spelling of 8761625 in words is "eight million, seven hundred sixty-one thousand, six hundred twenty-five".