84068691 has 8 divisors (see below), whose sum is σ = 128104704. Its totient is φ = 48039240.

The previous prime is 84068681. The next prime is 84068701. The reversal of 84068691 is 19686048.

It is an interprime number because it is at equal distance from previous prime (84068681) and next prime (84068701).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84068691 - 2⁷ = 84068563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84068681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001615 + ... + 2001656.

It is an arithmetic number, because the mean of its divisors is an integer number (16013088).

Almost surely, 2^84068691 is an apocalyptic number.

84068691 is a deficient number, since it is larger than the sum of its proper divisors (44036013).

84068691 is a wasteful number, since it uses less digits than its factorization.

84068691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003281.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 84068691 is about 9168.8980253900. The cubic root of 84068691 is about 438.0712598556.

The spelling of 84068691 in words is "eighty-four million, sixty-eight thousand, six hundred ninety-one".