8478437 has 4 divisors (see below), whose sum is σ = 9249216. Its totient is φ = 7707660.

The previous prime is 8478433. The next prime is 8478493. The reversal of 8478437 is 7348748.

8478437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8478437 - 2² = 8478433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8478394 and 8478403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385373 + ... + 385394.

It is an arithmetic number, because the mean of its divisors is an integer number (2312304).

Almost surely, 2^8478437 is an apocalyptic number.

It is an amenable number.

8478437 is a deficient number, since it is larger than the sum of its proper divisors (770779).

8478437 is a wasteful number, since it uses less digits than its factorization.

8478437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770778.

The product of its digits is 150528, while the sum is 41.

The square root of 8478437 is about 2911.7755751431. The cubic root of 8478437 is about 203.9100349816.

The spelling of 8478437 in words is "eight million, four hundred seventy-eight thousand, four hundred thirty-seven".