76671533 has 4 divisors (see below), whose sum is σ = 76697148. Its totient is φ = 76645920.

The previous prime is 76671527. The next prime is 76671557. The reversal of 76671533 is 33517667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33517667 = 89 ⋅376603.

It can be written as a sum of positive squares in 2 ways, for example, as 8988004 + 67683529 = 2998^2 + 8227^2 .

It is a cyclic number.

It is not a de Polignac number, because 76671533 - 2²⁶ = 9562669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76671233) 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, 7616 + ... + 14537.

It is an arithmetic number, because the mean of its divisors is an integer number (19174287).

Almost surely, 2^76671533 is an apocalyptic number.

It is an amenable number.

76671533 is a deficient number, since it is larger than the sum of its proper divisors (25615).

76671533 is a wasteful number, since it uses less digits than its factorization.

76671533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25614.

The product of its digits is 79380, while the sum is 38.

The square root of 76671533 is about 8756.2282405154. The cubic root of 76671533 is about 424.8262874847.

The spelling of 76671533 in words is "seventy-six million, six hundred seventy-one thousand, five hundred thirty-three".