2947894 has 8 divisors (see below), whose sum is σ = 4445568. Its totient is φ = 1466040.

The previous prime is 2947891. The next prime is 2947897. The reversal of 2947894 is 4987492.

It is an interprime number because it is at equal distance from previous prime (2947891) and next prime (2947897).

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 2947894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947891) 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, 3477 + ... + 4240.

It is an arithmetic number, because the mean of its divisors is an integer number (555696).

2^2947894 is an apocalyptic number.

2947894 is a deficient number, since it is larger than the sum of its proper divisors (1497674).

2947894 is a wasteful number, since it uses less digits than its factorization.

2947894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910.

The product of its digits is 145152, while the sum is 43.

The square root of 2947894 is about 1716.9432139707. The cubic root of 2947894 is about 143.3850771657.

The spelling of 2947894 in words is "two million, nine hundred forty-seven thousand, eight hundred ninety-four".