71700190 has 8 divisors (see below), whose sum is σ = 129060360. Its totient is φ = 28680072.

The previous prime is 71700143. The next prime is 71700197. The reversal of 71700190 is 9100717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71700190² = 10281834492072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71700197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3585000 + ... + 3585019.

It is an arithmetic number, because the mean of its divisors is an integer number (16132545).

Almost surely, 2^71700190 is an apocalyptic number.

71700190 is a deficient number, since it is larger than the sum of its proper divisors (57360170).

71700190 is a wasteful number, since it uses less digits than its factorization.

71700190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7170026.

The product of its (nonzero) digits is 441, while the sum is 25.

The square root of 71700190 is about 8467.5964712544. The cubic root of 71700190 is about 415.4385261445.

The spelling of 71700190 in words is "seventy-one million, seven hundred thousand, one hundred ninety".