71622424 has 16 divisors (see below), whose sum is σ = 135036720. Its totient is φ = 35612640.

The previous prime is 71622413. The next prime is 71622461. The reversal of 71622424 is 42422617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71622392 and 71622401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23284 + ... + 26179.

It is an arithmetic number, because the mean of its divisors is an integer number (8439795).

Almost surely, 2^71622424 is an apocalyptic number.

It is an amenable number.

71622424 is a deficient number, since it is larger than the sum of its proper divisors (63414296).

71622424 is a wasteful number, since it uses less digits than its factorization.

71622424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49650 (or 49646 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 71622424 is about 8463.0032494381. The cubic root of 71622424 is about 415.2882769866.

The spelling of 71622424 in words is "seventy-one million, six hundred twenty-two thousand, four hundred twenty-four".