84981351 has 32 divisors (see below), whose sum is σ = 147667968. Its totient is φ = 42186240.

The previous prime is 84981331. The next prime is 84981353. The reversal of 84981351 is 15318948.

It is not a de Polignac number, because 84981351 - 2⁹ = 84980839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84981353) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4515 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (4614624).

Almost surely, 2^84981351 is an apocalyptic number.

84981351 is a deficient number, since it is larger than the sum of its proper divisors (62686617).

84981351 is a wasteful number, since it uses less digits than its factorization.

84981351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351.

The product of its digits is 34560, while the sum is 39.

The square root of 84981351 is about 9218.5330177854. The cubic root of 84981351 is about 439.6508093829.

The spelling of 84981351 in words is "eighty-four million, nine hundred eighty-one thousand, three hundred fifty-one".