77283136 has 28 divisors (see below), whose sum is σ = 175268128. Its totient is φ = 33121152.

The previous prime is 77283109. The next prime is 77283161. The reversal of 77283136 is 63138277.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 77283095 and 77283104.

It is a congruent number.

It is an unprimeable number.

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, 85806 + ... + 86701.

It is an arithmetic number, because the mean of its divisors is an integer number (6259576).

Almost surely, 2^77283136 is an apocalyptic number.

It is an amenable number.

77283136 is an abundant number, since it is smaller than the sum of its proper divisors (97984992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77283136 is a wasteful number, since it uses less digits than its factorization.

77283136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172526 (or 172516 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 77283136 is about 8791.0827547009. The cubic root of 77283136 is about 425.9528994925.

The spelling of 77283136 in words is "seventy-seven million, two hundred eighty-three thousand, one hundred thirty-six".