71690208 has 24 divisors (see below), whose sum is σ = 188187048. Its totient is φ = 23896704.

The previous prime is 71690167. The next prime is 71690219. The reversal of 71690208 is 80209617.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

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, 373291 + ... + 373482.

It is an arithmetic number, because the mean of its divisors is an integer number (7841127).

Almost surely, 2^71690208 is an apocalyptic number.

It is an amenable number.

71690208 is an abundant number, since it is smaller than the sum of its proper divisors (116496840).

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

71690208 is a wasteful number, since it uses less digits than its factorization.

71690208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746786 (or 746778 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 71690208 is about 8467.0070272795. The cubic root of 71690208 is about 415.4192463266.

The spelling of 71690208 in words is "seventy-one million, six hundred ninety thousand, two hundred eight".