77483988 has 36 divisors (see below), whose sum is σ = 197890420. Its totient is φ = 25560576.

The previous prime is 77483981. The next prime is 77484007. The reversal of 77483988 is 88938477.

77483988 is a `hidden beast` number, since 77 + 483 + 98 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43401744 + 34082244 = 6588^2 + 5838^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77483981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7603 + ... + 14586.

Almost surely, 2^77483988 is an apocalyptic number.

It is an amenable number.

77483988 is an abundant number, since it is smaller than the sum of its proper divisors (120406432).

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

77483988 is a wasteful number, since it uses less digits than its factorization.

77483988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22296 (or 22291 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 77483988 is about 8802.4989633626. The cubic root of 77483988 is about 426.3215848561.

The spelling of 77483988 in words is "seventy-seven million, four hundred eighty-three thousand, nine hundred eighty-eight".