77321485 has 16 divisors (see below), whose sum is σ = 94711680. Its totient is φ = 60585280.

The previous prime is 77321479. The next prime is 77321521. The reversal of 77321485 is 58412377.

It is not a de Polignac number, because 77321485 - 2⁹ = 77320973 is a prime.

It is a super-2 number, since 2×77321485² = 11957224085210450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60786 + ... + 62044.

It is an arithmetic number, because the mean of its divisors is an integer number (5919480).

Almost surely, 2^77321485 is an apocalyptic number.

It is an amenable number.

77321485 is a deficient number, since it is larger than the sum of its proper divisors (17390195).

77321485 is a wasteful number, since it uses less digits than its factorization.

77321485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its digits is 47040, while the sum is 37.

The square root of 77321485 is about 8793.2636148361. The cubic root of 77321485 is about 426.0233424872.

The spelling of 77321485 in words is "seventy-seven million, three hundred twenty-one thousand, four hundred eighty-five".