77388084 has 36 divisors (see below), whose sum is σ = 198103360. Its totient is φ = 25468560.

The previous prime is 77388061. The next prime is 77388107. The reversal of 77388084 is 48088377.

It is an interprime number because it is at equal distance from previous prime (77388061) and next prime (77388107).

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

It is a super-3 number, since 3×77388084³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10762 + ... + 16449.

Almost surely, 2^77388084 is an apocalyptic number.

It is an amenable number.

77388084 is an abundant number, since it is smaller than the sum of its proper divisors (120715276).

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

77388084 is a wasteful number, since it uses less digits than its factorization.

77388084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27300 (or 27295 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 77388084 is about 8797.0497327229. The cubic root of 77388084 is about 426.1456223703.

The spelling of 77388084 in words is "seventy-seven million, three hundred eighty-eight thousand, eighty-four".