77443485 has 48 divisors (see below), whose sum is σ = 146829696. Its totient is φ = 34142976.

The previous prime is 77443481. The next prime is 77443489. The reversal of 77443485 is 58434477.

It is an interprime number because it is at equal distance from previous prime (77443481) and next prime (77443489).

It is not a de Polignac number, because 77443485 - 2² = 77443481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77443481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87867 + ... + 88743.

It is an arithmetic number, because the mean of its divisors is an integer number (3058952).

Almost surely, 2^77443485 is an apocalyptic number.

It is an amenable number.

77443485 is a deficient number, since it is larger than the sum of its proper divisors (69386211).

77443485 is a wasteful number, since it uses less digits than its factorization.

77443485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 921 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The square root of 77443485 is about 8800.1980091359. The cubic root of 77443485 is about 426.2472885911.

The spelling of 77443485 in words is "seventy-seven million, four hundred forty-three thousand, four hundred eighty-five".