77055485 has 8 divisors (see below), whose sum is σ = 99579480. Its totient is φ = 56902464.

The previous prime is 77055449. The next prime is 77055493. The reversal of 77055485 is 58455077.

It can be written as a sum of positive squares in 4 ways, for example, as 3147076 + 73908409 = 1774^2 + 8597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77055485 - 2⁶ = 77055421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592670 + ... + 592799.

It is an arithmetic number, because the mean of its divisors is an integer number (12447435).

Almost surely, 2^77055485 is an apocalyptic number.

It is an amenable number.

77055485 is a deficient number, since it is larger than the sum of its proper divisors (22523995).

77055485 is a wasteful number, since it uses less digits than its factorization.

77055485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185487.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 77055485 is about 8778.1253693485. The cubic root of 77055485 is about 425.5342485538.

The spelling of 77055485 in words is "seventy-seven million, fifty-five thousand, four hundred eighty-five".