84621005 has 8 divisors (see below), whose sum is σ = 116051712. Its totient is φ = 58025808.

The previous prime is 84620993. The next prime is 84621023. The reversal of 84621005 is 50012648.

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 84621005 - 2¹⁶ = 84555469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208837 + ... + 1208906.

It is an arithmetic number, because the mean of its divisors is an integer number (14506464).

Almost surely, 2^84621005 is an apocalyptic number.

It is an amenable number.

84621005 is a deficient number, since it is larger than the sum of its proper divisors (31430707).

84621005 is a wasteful number, since it uses less digits than its factorization.

84621005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417755.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 84621005 is about 9198.9676051174. The cubic root of 84621005 is about 439.0285125982.

The spelling of 84621005 in words is "eighty-four million, six hundred twenty-one thousand, five".