71193730 has 16 divisors (see below), whose sum is σ = 128346624. Its totient is φ = 28433520.

The previous prime is 71193713. The next prime is 71193737. The reversal of 71193730 is 3739117.

It is a junction number, because it is equal to n+sod(n) for n = 71193692 and 71193701.

It is not an unprimeable number, because it can be changed into a prime (71193737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1759 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (8021664).

Almost surely, 2^71193730 is an apocalyptic number.

71193730 is a deficient number, since it is larger than the sum of its proper divisors (57152894).

71193730 is a wasteful number, since it uses less digits than its factorization.

71193730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 71193730 is about 8437.6377025800. The cubic root of 71193730 is about 414.4580529238.

The spelling of 71193730 in words is "seventy-one million, one hundred ninety-three thousand, seven hundred thirty".