66703434 has 32 divisors (see below), whose sum is σ = 155713536. Its totient is φ = 18652080.

The previous prime is 66703423. The next prime is 66703477. The reversal of 66703434 is 43430766.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66703395 and 66703404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14922 + ... + 18869.

It is an arithmetic number, because the mean of its divisors is an integer number (4866048).

Almost surely, 2^66703434 is an apocalyptic number.

66703434 is an abundant number, since it is smaller than the sum of its proper divisors (89010102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66703434 is a wasteful number, since it uses less digits than its factorization.

66703434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33850.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 66703434 is about 8167.2170290742. The cubic root of 66703434 is about 405.5546614549.

The spelling of 66703434 in words is "sixty-six million, seven hundred three thousand, four hundred thirty-four".