84337621217 has 8 divisors (see below), whose sum is σ = 84722005632. Its totient is φ = 83953350000.

The previous prime is 84337621187. The next prime is 84337621223. The reversal of 84337621217 is 71212673348.

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 84337621217 - 2⁶ = 84337621153 is a prime.

It is a super-2 number, since 2×84337621217² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84337621297) 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, 1705592 + ... + 1754342.

It is an arithmetic number, because the mean of its divisors is an integer number (10590250704).

Almost surely, 2^84337621217 is an apocalyptic number.

It is an amenable number.

84337621217 is a deficient number, since it is larger than the sum of its proper divisors (384384415).

84337621217 is a wasteful number, since it uses less digits than its factorization.

84337621217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56599.

The product of its digits is 338688, while the sum is 44.

The spelling of 84337621217 in words is "eighty-four billion, three hundred thirty-seven million, six hundred twenty-one thousand, two hundred seventeen".