76666733 has 16 divisors (see below), whose sum is σ = 90327552. Its totient is φ = 64152000.

The previous prime is 76666727. The next prime is 76666739. The reversal of 76666733 is 33766667.

It is an interprime number because it is at equal distance from previous prime (76666727) and next prime (76666739).

It is not a de Polignac number, because 76666733 - 2⁸ = 76666477 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 (76666739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76868 + ... + 77858.

It is an arithmetic number, because the mean of its divisors is an integer number (5645472).

Almost surely, 2^76666733 is an apocalyptic number.

It is an amenable number.

76666733 is a deficient number, since it is larger than the sum of its proper divisors (13660819).

76666733 is a wasteful number, since it uses less digits than its factorization.

76666733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its digits is 571536, while the sum is 44.

The square root of 76666733 is about 8755.9541456086. The cubic root of 76666733 is about 424.8174219225.

The spelling of 76666733 in words is "seventy-six million, six hundred sixty-six thousand, seven hundred thirty-three".