76661033 has 2 divisors, whose sum is σ = 76661034. Its totient is φ = 76661032.

The previous prime is 76661027. The next prime is 76661063. The reversal of 76661033 is 33016667.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57274624 + 19386409 = 7568^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 76661033 - 2⁴ = 76661017 is a prime.

It is not a weakly prime, because it can be changed into another prime (76661063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38330516 + 38330517.

It is an arithmetic number, because the mean of its divisors is an integer number (38330517).

Almost surely, 2^76661033 is an apocalyptic number.

It is an amenable number.

76661033 is a deficient number, since it is larger than the sum of its proper divisors (1).

76661033 is an equidigital number, since it uses as much as digits as its factorization.

76661033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 76661033 is about 8755.6286467620. The cubic root of 76661033 is about 424.8068935868.

The spelling of 76661033 in words is "seventy-six million, six hundred sixty-one thousand, thirty-three".