84077388 has 36 divisors (see below), whose sum is σ = 217716408. Its totient is φ = 27341760.

The previous prime is 84077387. The next prime is 84077401. The reversal of 84077388 is 88377048.

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

It is not an unprimeable number, because it can be changed into a prime (84077387) 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, 27006 + ... + 29957.

It is an arithmetic number, because the mean of its divisors is an integer number (6047678).

Almost surely, 2^84077388 is an apocalyptic number.

It is an amenable number.

84077388 is an abundant number, since it is smaller than the sum of its proper divisors (133639020).

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

84077388 is a wasteful number, since it uses less digits than its factorization.

84077388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57014 (or 57009 counting only the distinct ones).

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

The square root of 84077388 is about 9169.3722794966. The cubic root of 84077388 is about 438.0863656551.

The spelling of 84077388 in words is "eighty-four million, seventy-seven thousand, three hundred eighty-eight".