2947456 has 16 divisors (see below), whose sum is σ = 5872140. Its totient is φ = 1473664.

The previous prime is 2947447. The next prime is 2947471. The reversal of 2947456 is 6547492.

It is a tau number, because it is divible by the number of its divisors (16).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11386 + ... + 11641.

2^2947456 is an apocalyptic number.

It is an amenable number.

2947456 is a deficient number, since it is larger than the sum of its proper divisors (2924684).

2947456 is an equidigital number, since it uses as much as digits as its factorization.

2947456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23041 (or 23029 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2947456 is about 1716.8156569650. The cubic root of 2947456 is about 143.3779753980.

It can be divided in two parts, 2947 and 456, that added together give a triangular number (3403 = T₈₂).

The spelling of 2947456 in words is "two million, nine hundred forty-seven thousand, four hundred fifty-six".