84351406 has 16 divisors (see below), whose sum is σ = 128595600. Its totient is φ = 41490688.

The previous prime is 84351389. The next prime is 84351409. The reversal of 84351406 is 60415348.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84351409) 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 7 ways as a sum of consecutive naturals, for example, 43710 + ... + 45598.

It is an arithmetic number, because the mean of its divisors is an integer number (8037225).

Almost surely, 2^84351406 is an apocalyptic number.

84351406 is a deficient number, since it is larger than the sum of its proper divisors (44244194).

84351406 is a wasteful number, since it uses less digits than its factorization.

84351406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 84351406 is about 9184.3021509530. The cubic root of 84351406 is about 438.5617743876.

The spelling of 84351406 in words is "eighty-four million, three hundred fifty-one thousand, four hundred six".