84291897 has 8 divisors (see below), whose sum is σ = 112510944. Its totient is φ = 56133728.

The previous prime is 84291877. The next prime is 84291901. The reversal of 84291897 is 79819248.

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

It is a cyclic number.

It is not a de Polignac number, because 84291897 - 2¹⁸ = 84029753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84291827) 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, 11883 + ... + 17600.

It is an arithmetic number, because the mean of its divisors is an integer number (14063868).

Almost surely, 2^84291897 is an apocalyptic number.

It is an amenable number.

84291897 is a deficient number, since it is larger than the sum of its proper divisors (28219047).

84291897 is a wasteful number, since it uses less digits than its factorization.

84291897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30439.

The product of its digits is 290304, while the sum is 48.

The square root of 84291897 is about 9181.0618666906. The cubic root of 84291897 is about 438.4586166034.

The spelling of 84291897 in words is "eighty-four million, two hundred ninety-one thousand, eight hundred ninety-seven".