84724899 has 16 divisors (see below), whose sum is σ = 131542272. Its totient is φ = 47500128.

The previous prime is 84724883. The next prime is 84724903. The reversal of 84724899 is 99842748.

It is not a de Polignac number, because 84724899 - 2⁴ = 84724883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84724099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36949 + ... + 39174.

It is an arithmetic number, because the mean of its divisors is an integer number (8221392).

Almost surely, 2^84724899 is an apocalyptic number.

84724899 is a deficient number, since it is larger than the sum of its proper divisors (46817373).

84724899 is a wasteful number, since it uses less digits than its factorization.

84724899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76186.

The product of its digits is 1161216, while the sum is 51.

The square root of 84724899 is about 9204.6129196181. The cubic root of 84724899 is about 439.2081125057.

The spelling of 84724899 in words is "eighty-four million, seven hundred twenty-four thousand, eight hundred ninety-nine".