7870947 has 8 divisors (see below), whose sum is σ = 11993856. Its totient is φ = 4497672.

The previous prime is 7870943. The next prime is 7870957. The reversal of 7870947 is 7490787.

7870947 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7870947 - 2² = 7870943 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7870899 and 7870908.

It is not an unprimeable number, because it can be changed into a prime (7870943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187383 + ... + 187424.

It is an arithmetic number, because the mean of its divisors is an integer number (1499232).

Almost surely, 2^7870947 is an apocalyptic number.

7870947 is a deficient number, since it is larger than the sum of its proper divisors (4122909).

7870947 is a wasteful number, since it uses less digits than its factorization.

7870947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374817.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 7870947 is about 2805.5208072656. The cubic root of 7870947 is about 198.9187230692.

The spelling of 7870947 in words is "seven million, eight hundred seventy thousand, nine hundred forty-seven".