71993346 has 32 divisors (see below), whose sum is σ = 150336000. Its totient is φ = 22957440.

The previous prime is 71993333. The next prime is 71993353. The reversal of 71993346 is 64339917.

It is a junction number, because it is equal to n+sod(n) for n = 71993298 and 71993307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14380 + ... + 18728.

It is an arithmetic number, because the mean of its divisors is an integer number (4698000).

Almost surely, 2^71993346 is an apocalyptic number.

71993346 is an abundant number, since it is smaller than the sum of its proper divisors (78342654).

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

71993346 is a wasteful number, since it uses less digits than its factorization.

71993346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474.

The product of its digits is 122472, while the sum is 42.

The square root of 71993346 is about 8484.8892744691. The cubic root of 71993346 is about 416.0039485880.

The spelling of 71993346 in words is "seventy-one million, nine hundred ninety-three thousand, three hundred forty-six".