84102881 has 8 divisors (see below), whose sum is σ = 89627904. Its totient is φ = 78733600.

The previous prime is 84102877. The next prime is 84102919. The reversal of 84102881 is 18820148.

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

It is not a de Polignac number, because 84102881 - 2² = 84102877 is a prime.

It is a super-2 number, since 2×84102881² = 14146589185000322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84102841) 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, 37820 + ... + 39981.

It is an arithmetic number, because the mean of its divisors is an integer number (11203488).

Almost surely, 2^84102881 is an apocalyptic number.

It is an amenable number.

84102881 is a deficient number, since it is larger than the sum of its proper divisors (5525023).

84102881 is a wasteful number, since it uses less digits than its factorization.

84102881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77871.

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 84102881 is about 9170.7622911075. The cubic root of 84102881 is about 438.1306383877.

The spelling of 84102881 in words is "eighty-four million, one hundred two thousand, eight hundred eighty-one".