77023133 has 16 divisors (see below), whose sum is σ = 87393600. Its totient is φ = 67267200.

The previous prime is 77023129. The next prime is 77023139. The reversal of 77023133 is 33132077.

It is a happy number.

It is not a de Polignac number, because 77023133 - 2² = 77023129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77023139) 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, 28943 + ... + 31491.

It is an arithmetic number, because the mean of its divisors is an integer number (5462100).

Almost surely, 2^77023133 is an apocalyptic number.

It is an amenable number.

77023133 is a deficient number, since it is larger than the sum of its proper divisors (10370467).

77023133 is a wasteful number, since it uses less digits than its factorization.

77023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 77023133 is about 8776.2824134140. The cubic root of 77023133 is about 425.4746862304.

The spelling of 77023133 in words is "seventy-seven million, twenty-three thousand, one hundred thirty-three".