84046397 has 4 divisors (see below), whose sum is σ = 84192636. Its totient is φ = 83900160.

The previous prime is 84046343. The next prime is 84046399. The reversal of 84046397 is 79364048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60124516 + 23921881 = 7754^2 + 4891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84046397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84046399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72254 + ... + 73407.

It is an arithmetic number, because the mean of its divisors is an integer number (21048159).

Almost surely, 2^84046397 is an apocalyptic number.

It is an amenable number.

84046397 is a deficient number, since it is larger than the sum of its proper divisors (146239).

84046397 is a wasteful number, since it uses less digits than its factorization.

84046397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146238.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 84046397 is about 9167.6822043524. The cubic root of 84046397 is about 438.0325326989.

The spelling of 84046397 in words is "eighty-four million, forty-six thousand, three hundred ninety-seven".