77485133 has 24 divisors (see below), whose sum is σ = 91163520. Its totient is φ = 65577600.

The previous prime is 77485123. The next prime is 77485139. The reversal of 77485133 is 33158477.

It is not a de Polignac number, because 77485133 - 2¹² = 77481037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77485139) 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 23 ways as a sum of consecutive naturals, for example, 285788 + ... + 286058.

It is an arithmetic number, because the mean of its divisors is an integer number (3798480).

Almost surely, 2^77485133 is an apocalyptic number.

It is an amenable number.

77485133 is a deficient number, since it is larger than the sum of its proper divisors (13678387).

77485133 is a wasteful number, since it uses less digits than its factorization.

77485133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 438 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 77485133 is about 8802.5640014714. The cubic root of 77485133 is about 426.3236847988.

The spelling of 77485133 in words is "seventy-seven million, four hundred eighty-five thousand, one hundred thirty-three".