84042755 has 4 divisors (see below), whose sum is σ = 100851312. Its totient is φ = 67234200.

The previous prime is 84042737. The next prime is 84042773. The reversal of 84042755 is 55724048.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (84042737) and next prime (84042773).

It is not a de Polignac number, because 84042755 - 2¹² = 84038659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8404271 + ... + 8404280.

It is an arithmetic number, because the mean of its divisors is an integer number (25212828).

Almost surely, 2^84042755 is an apocalyptic number.

84042755 is a deficient number, since it is larger than the sum of its proper divisors (16808557).

84042755 is a wasteful number, since it uses less digits than its factorization.

84042755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16808556.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 84042755 is about 9167.4835696608. The cubic root of 84042755 is about 438.0262054892.

The spelling of 84042755 in words is "eighty-four million, forty-two thousand, seven hundred fifty-five".