65406434 has 16 divisors (see below), whose sum is σ = 103289472. Its totient is φ = 31002048.

The previous prime is 65406427. The next prime is 65406443. The reversal of 65406434 is 43460456.

65406434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65406434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (6455592).

Almost surely, 2^65406434 is an apocalyptic number.

65406434 is a deficient number, since it is larger than the sum of its proper divisors (37883038).

65406434 is a wasteful number, since it uses less digits than its factorization.

65406434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 65406434 is about 8087.4244355048. The cubic root of 65406434 is about 402.9088658048.

The spelling of 65406434 in words is "sixty-five million, four hundred six thousand, four hundred thirty-four".