2947870 has 8 divisors (see below), whose sum is σ = 5306184. Its totient is φ = 1179144.

The previous prime is 2947853. The next prime is 2947877. The reversal of 2947870 is 787492.

It is a happy number.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947877) 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, 147384 + ... + 147403.

It is an arithmetic number, because the mean of its divisors is an integer number (663273).

2^2947870 is an apocalyptic number.

2947870 is a deficient number, since it is larger than the sum of its proper divisors (2358314).

2947870 is a wasteful number, since it uses less digits than its factorization.

2947870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294794.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2947870 is about 1716.9362247911. The cubic root of 2947870 is about 143.3846880459.

The spelling of 2947870 in words is "two million, nine hundred forty-seven thousand, eight hundred seventy".