84342477 has 16 divisors (see below), whose sum is σ = 113984000. Its totient is φ = 55469232.

The previous prime is 84342439. The next prime is 84342547. The reversal of 84342477 is 77424348.

It is not a de Polignac number, because 84342477 - 2¹² = 84338381 is a prime.

It is a super-2 number, since 2×84342477² = 14227306852991058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84342407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153918 + ... + 154464.

It is an arithmetic number, because the mean of its divisors is an integer number (7124000).

Almost surely, 2^84342477 is an apocalyptic number.

It is an amenable number.

84342477 is a deficient number, since it is larger than the sum of its proper divisors (29641523).

84342477 is a wasteful number, since it uses less digits than its factorization.

84342477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its digits is 150528, while the sum is 39.

The square root of 84342477 is about 9183.8160369206. The cubic root of 84342477 is about 438.5462992207.

The spelling of 84342477 in words is "eighty-four million, three hundred forty-two thousand, four hundred seventy-seven".