71693064 has 24 divisors (see below), whose sum is σ = 194168910. Its totient is φ = 23897664.

The previous prime is 71693057. The next prime is 71693071. The reversal of 71693064 is 46039617.

It is an interprime number because it is at equal distance from previous prime (71693057) and next prime (71693071).

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 31472100 = 6342^2 + 5610^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 497797 + ... + 497940.

Almost surely, 2^71693064 is an apocalyptic number.

It is an amenable number.

71693064 is an abundant number, since it is smaller than the sum of its proper divisors (122475846).

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

71693064 is a wasteful number, since it uses less digits than its factorization.

71693064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995749 (or 995742 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 71693064 is about 8467.1756802372. The cubic root of 71693064 is about 415.4247627546.

The spelling of 71693064 in words is "seventy-one million, six hundred ninety-three thousand, sixty-four".