71244966 has 16 divisors (see below), whose sum is σ = 153450864. Its totient is φ = 21921504.

The previous prime is 71244947. The next prime is 71244973. The reversal of 71244966 is 66944217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456621 + ... + 456776.

It is an arithmetic number, because the mean of its divisors is an integer number (9590679).

Almost surely, 2^71244966 is an apocalyptic number.

71244966 is an abundant number, since it is smaller than the sum of its proper divisors (82205898).

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

71244966 is a wasteful number, since it uses less digits than its factorization.

71244966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913415.

The product of its digits is 72576, while the sum is 39.

The square root of 71244966 is about 8440.6733143749. The cubic root of 71244966 is about 414.5574534409.

It can be divided in two parts, 7124 and 4966, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 71244966 in words is "seventy-one million, two hundred forty-four thousand, nine hundred sixty-six".