2947906 has 8 divisors (see below), whose sum is σ = 4762044. Its totient is φ = 1360560.

The previous prime is 2947897. The next prime is 2947939. The reversal of 2947906 is 6097492.

It can be written as a sum of positive squares in 2 ways, for example, as 2920681 + 27225 = 1709^2 + 165^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56665 + ... + 56716.

2^2947906 is an apocalyptic number.

2947906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2947906 is a deficient number, since it is larger than the sum of its proper divisors (1814138).

2947906 is a wasteful number, since it uses less digits than its factorization.

2947906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113396.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2947906 is about 1716.9467085498. The cubic root of 2947906 is about 143.3852717247.

The spelling of 2947906 in words is "two million, nine hundred forty-seven thousand, nine hundred six".