84928749 has 8 divisors (see below), whose sum is σ = 113669952. Its totient is φ = 56403360.

The previous prime is 84928729. The next prime is 84928757. The reversal of 84928749 is 94782948.

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

It is not a de Polignac number, because 84928749 - 2⁵ = 84928717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84928729) 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, 53032 + ... + 54609.

It is an arithmetic number, because the mean of its divisors is an integer number (14208744).

Almost surely, 2^84928749 is an apocalyptic number.

It is an amenable number.

84928749 is a deficient number, since it is larger than the sum of its proper divisors (28741203).

84928749 is a wasteful number, since it uses less digits than its factorization.

84928749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107907.

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

The square root of 84928749 is about 9215.6795191673. The cubic root of 84928749 is about 439.5600785544.

The spelling of 84928749 in words is "eighty-four million, nine hundred twenty-eight thousand, seven hundred forty-nine".