71833690 has 16 divisors (see below), whose sum is σ = 129820320. Its totient is φ = 28618000.

The previous prime is 71833649. The next prime is 71833691. The reversal of 71833690 is 9633817.

It is a super-2 number, since 2×71833690² = 10320158038032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71833691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11800 + ... + 16819.

It is an arithmetic number, because the mean of its divisors is an integer number (8113770).

Almost surely, 2^71833690 is an apocalyptic number.

71833690 is a deficient number, since it is larger than the sum of its proper divisors (57986630).

71833690 is a wasteful number, since it uses less digits than its factorization.

71833690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28877.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 71833690 is about 8475.4757978535. The cubic root of 71833690 is about 415.6962040180.

The spelling of 71833690 in words is "seventy-one million, eight hundred thirty-three thousand, six hundred ninety".