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8972725 = 52358909
BaseRepresentation
bin100010001110…
…100110110101
3121212212021011
4202032212311
54244111400
6520152221
7136160356
oct42164665
917785234
108972725
115079383
123008671
131b22108
141297d2d
15bc38ba
hex88e9b5

8972725 has 6 divisors (see below), whose sum is σ = 11126210. Its totient is φ = 7178160.

The previous prime is 8972701. The next prime is 8972749. The reversal of 8972725 is 5272798.

8972725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8972701) and next prime (8972749).

It can be written as a sum of positive squares in 3 ways, for example, as 2531281 + 6441444 = 1591^2 + 2538^2 .

It is not a de Polignac number, because 8972725 - 217 = 8841653 is a prime.

8972725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179430 + ... + 179479.

Almost surely, 28972725 is an apocalyptic number.

It is an amenable number.

8972725 is a deficient number, since it is larger than the sum of its proper divisors (2153485).

8972725 is a wasteful number, since it uses less digits than its factorization.

8972725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358919 (or 358914 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 8972725 is about 2995.4507173379. The cubic root of 8972725 is about 207.7980426937.

The spelling of 8972725 in words is "eight million, nine hundred seventy-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 358909 1794545 8972725