84019397 has 8 divisors (see below), whose sum is σ = 104751552. Its totient is φ = 65469600.

The previous prime is 84019367. The next prime is 84019417. The reversal of 84019397 is 79391048.

It is a happy number.

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

It is not a de Polignac number, because 84019397 - 2⁸ = 84019141 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 (84019337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545504 + ... + 545657.

It is an arithmetic number, because the mean of its divisors is an integer number (13093944).

Almost surely, 2^84019397 is an apocalyptic number.

It is an amenable number.

84019397 is a deficient number, since it is larger than the sum of its proper divisors (20732155).

84019397 is a wasteful number, since it uses less digits than its factorization.

84019397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091179.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 84019397 is about 9166.2095219344. The cubic root of 84019397 is about 437.9856215264.

The spelling of 84019397 in words is "eighty-four million, nineteen thousand, three hundred ninety-seven".