8400147 has 32 divisors (see below), whose sum is σ = 13862400. Its totient is φ = 4416768.

The previous prime is 8400143. The next prime is 8400157. The reversal of 8400147 is 7410048.

It is not a de Polignac number, because 8400147 - 2² = 8400143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14479 + ... + 15047.

It is an arithmetic number, because the mean of its divisors is an integer number (433200).

Almost surely, 2^8400147 is an apocalyptic number.

8400147 is a deficient number, since it is larger than the sum of its proper divisors (5462253).

8400147 is a wasteful number, since it uses less digits than its factorization.

8400147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 8400147 is about 2898.3007090362. The cubic root of 8400147 is about 203.2804571518.

Subtracting from 8400147 its reverse (7410048), we obtain a palindrome (990099).

It can be divided in two parts, 84001 and 47, that added together give a palindrome (84048).

The spelling of 8400147 in words is "eight million, four hundred thousand, one hundred forty-seven".