71609466 has 32 divisors (see below), whose sum is σ = 148143168. Its totient is φ = 23063040.

The previous prime is 71609449. The next prime is 71609477. The reversal of 71609466 is 66490617.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 19626 + ... + 22986.

It is an arithmetic number, because the mean of its divisors is an integer number (4629474).

Almost surely, 2^71609466 is an apocalyptic number.

71609466 is an abundant number, since it is smaller than the sum of its proper divisors (76533702).

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

71609466 is a wasteful number, since it uses less digits than its factorization.

71609466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 71609466 is about 8462.2376473365. The cubic root of 71609466 is about 415.2632306870.

The spelling of 71609466 in words is "seventy-one million, six hundred nine thousand, four hundred sixty-six".