71423650 has 12 divisors (see below), whose sum is σ = 132848082. Its totient is φ = 28569440.

The previous prime is 71423633. The next prime is 71423683. The reversal of 71423650 is 5632417.

It can be written as a sum of positive squares in 3 ways, for example, as 28376929 + 43046721 = 5327^2 + 6561^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 714187 + ... + 714286.

Almost surely, 2^71423650 is an apocalyptic number.

71423650 is a deficient number, since it is larger than the sum of its proper divisors (61424432).

71423650 is a wasteful number, since it uses less digits than its factorization.

71423650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428485 (or 1428480 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 71423650 is about 8451.2513866291. The cubic root of 71423650 is about 414.9037372896.

The spelling of 71423650 in words is "seventy-one million, four hundred twenty-three thousand, six hundred fifty".