84888749 has 4 divisors (see below), whose sum is σ = 92605920. Its totient is φ = 77171580.

The previous prime is 84888743. The next prime is 84888761. The reversal of 84888749 is 94788848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84888749 - 2¹⁶ = 84823213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84888694 and 84888703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84888743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858569 + ... + 3858590.

It is an arithmetic number, because the mean of its divisors is an integer number (23151480).

Almost surely, 2^84888749 is an apocalyptic number.

It is an amenable number.

84888749 is a deficient number, since it is larger than the sum of its proper divisors (7717171).

84888749 is a wasteful number, since it uses less digits than its factorization.

84888749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717170.

The product of its digits is 4128768, while the sum is 56.

The square root of 84888749 is about 9213.5090492168. The cubic root of 84888749 is about 439.4910592709.

Subtracting 84888749 from its reverse (94788848), we obtain a palindrome (9900099).

The spelling of 84888749 in words is "eighty-four million, eight hundred eighty-eight thousand, seven hundred forty-nine".