71650753 has 4 divisors (see below), whose sum is σ = 73002708. Its totient is φ = 70298800.

The previous prime is 71650723. The next prime is 71650757. The reversal of 71650753 is 35705617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35705617 = 19 ⋅1879243.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 40870449 = 5548^2 + 6393^2 .

It is a cyclic number.

It is not a de Polignac number, because 71650753 - 2¹³ = 71642561 is a prime.

It is a super-3 number, since 3×71650753³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71650757) 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 3 ways as a sum of consecutive naturals, for example, 675898 + ... + 676003.

It is an arithmetic number, because the mean of its divisors is an integer number (18250677).

Almost surely, 2^71650753 is an apocalyptic number.

It is an amenable number.

71650753 is a deficient number, since it is larger than the sum of its proper divisors (1351955).

71650753 is a wasteful number, since it uses less digits than its factorization.

71650753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351954.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 71650753 is about 8464.6767805983. The cubic root of 71650753 is about 415.3430231130.

The spelling of 71650753 in words is "seventy-one million, six hundred fifty thousand, seven hundred fifty-three".