84361281 has 8 divisors (see below), whose sum is σ = 113198784. Its totient is φ = 55882320.

The previous prime is 84361279. The next prime is 84361307. The reversal of 84361281 is 18216348.

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

It is not a de Polignac number, because 84361281 - 2¹ = 84361279 is a prime.

It is a super-2 number, since 2×84361281² = 14233651463921922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84361271) 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, 89085 + ... + 90026.

It is an arithmetic number, because the mean of its divisors is an integer number (14149848).

Almost surely, 2^84361281 is an apocalyptic number.

It is an amenable number.

84361281 is a deficient number, since it is larger than the sum of its proper divisors (28837503).

84361281 is a wasteful number, since it uses less digits than its factorization.

84361281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179271.

The product of its digits is 9216, while the sum is 33.

The square root of 84361281 is about 9184.8397373063. The cubic root of 84361281 is about 438.5788878290.

The spelling of 84361281 in words is "eighty-four million, three hundred sixty-one thousand, two hundred eighty-one".