2943634 has 4 divisors (see below), whose sum is σ = 4415454. Its totient is φ = 1471816.

The previous prime is 2943631. The next prime is 2943641. The reversal of 2943634 is 4363492.

2943634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 1113025 = 1353^2 + 1055^2 .

It is a super-2 number, since 2×2943634² = 17329962251912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2943596 and 2943605.

It is not an unprimeable number, because it can be changed into a prime (2943631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 735907 + ... + 735910.

2^2943634 is an apocalyptic number.

2943634 is a deficient number, since it is larger than the sum of its proper divisors (1471820).

2943634 is a wasteful number, since it uses less digits than its factorization.

2943634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471819.

The product of its digits is 15552, while the sum is 31.

The square root of 2943634 is about 1715.7021886097. The cubic root of 2943634 is about 143.3159753032.

The spelling of 2943634 in words is "two million, nine hundred forty-three thousand, six hundred thirty-four".