7643434 has 16 divisors (see below), whose sum is σ = 12242880.
Its totient is φ = 3568320.
The previous prime is 7643431. The next prime is 7643473. The reversal of 7643434 is 4343467.
7643434 is nontrivially palindromic in base 6.
It is a junction number, because it is equal to n+sod(n) for n = 7643396 and 7643405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7643431) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 4114.
It is an arithmetic number, because the mean of its divisors is an integer number (765180).
Almost surely, 27643434 is an apocalyptic number.
7643434 is a deficient number, since it is larger than the sum of its proper divisors (4599446).
7643434 is a wasteful number, since it uses less digits than its factorization.
7643434 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2925.
The product of its digits is 24192, while the sum is 31.
The square root of 7643434 is about 2764.6761112289.
The cubic root of 7643434 is about 196.9833443794.
The spelling of 7643434 in words is "seven million, six hundred forty-three thousand, four hundred thirty-four".