77093460 has 36 divisors (see below), whose sum is σ = 233850708. Its totient is φ = 20558208.

The previous prime is 77093441. The next prime is 77093473. The reversal of 77093460 is 6439077.

It can be written as a sum of positive squares in 2 ways, for example, as 36796356 + 40297104 = 6066^2 + 6348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213969 + ... + 214328.

It is an arithmetic number, because the mean of its divisors is an integer number (6495853).

Almost surely, 2^77093460 is an apocalyptic number.

It is an amenable number.

77093460 is an abundant number, since it is smaller than the sum of its proper divisors (156757248).

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

77093460 is a wasteful number, since it uses less digits than its factorization.

77093460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428312 (or 428307 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 77093460 is about 8780.2881501691. The cubic root of 77093460 is about 425.6041419524.

The spelling of 77093460 in words is "seventy-seven million, ninety-three thousand, four hundred sixty".