84630505 has 16 divisors (see below), whose sum is σ = 107907984. Its totient is φ = 63498240.

The previous prime is 84630487. The next prime is 84630523. The reversal of 84630505 is 50503648.

It is an interprime number because it is at equal distance from previous prime (84630487) and next prime (84630523).

It can be written as a sum of positive squares in 8 ways, for example, as 21650409 + 62980096 = 4653^2 + 7936^2 .

It is not a de Polignac number, because 84630505 - 2¹⁷ = 84499433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25015 + ... + 28195.

It is an arithmetic number, because the mean of its divisors is an integer number (6744249).

Almost surely, 2^84630505 is an apocalyptic number.

84630505 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84630505 is a deficient number, since it is larger than the sum of its proper divisors (23277479).

84630505 is a wasteful number, since it uses less digits than its factorization.

84630505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 84630505 is about 9199.4839529182. The cubic root of 84630505 is about 439.0449412016.

The spelling of 84630505 in words is "eighty-four million, six hundred thirty thousand, five hundred five".