77261485 has 24 divisors (see below), whose sum is σ = 112548096. Its totient is φ = 50672160.

The previous prime is 77261477. The next prime is 77261501. The reversal of 77261485 is 58416277.

It is not a de Polignac number, because 77261485 - 2³ = 77261477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1221 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (4689504).

Almost surely, 2^77261485 is an apocalyptic number.

It is an amenable number.

77261485 is a deficient number, since it is larger than the sum of its proper divisors (35286611).

77261485 is a wasteful number, since it uses less digits than its factorization.

77261485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753 (or 13746 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 77261485 is about 8789.8512501635. The cubic root of 77261485 is about 425.9131186380.

The spelling of 77261485 in words is "seventy-seven million, two hundred sixty-one thousand, four hundred eighty-five".