7943434 has 8 divisors (see below), whose sum is σ = 11976228. Its totient is φ = 3951360.

The previous prime is 7943431. The next prime is 7943443. The reversal of 7943434 is 4343497.

It can be written as a sum of positive squares in 2 ways, for example, as 6744409 + 1199025 = 2597^2 + 1095^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7943434.

It is not an unprimeable number, because it can be changed into a prime (7943431) 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 in 3 ways as a sum of consecutive naturals, for example, 9687 + ... + 10474.

Almost surely, 2^7943434 is an apocalyptic number.

7943434 is a deficient number, since it is larger than the sum of its proper divisors (4032794).

7943434 is a wasteful number, since it uses less digits than its factorization.

7943434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20360.

The product of its digits is 36288, while the sum is 34.

The square root of 7943434 is about 2818.4098353504. The cubic root of 7943434 is about 199.5275012705.

The spelling of 7943434 in words is "seven million, nine hundred forty-three thousand, four hundred thirty-four".