98511749 has 4 divisors (see below), whose sum is σ = 112584864. Its totient is φ = 84438636.

The previous prime is 98511739. The next prime is 98511773. The reversal of 98511749 is 94711589.

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 98511749 - 2⁴ = 98511733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98511709) 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, 7036547 + ... + 7036560.

It is an arithmetic number, because the mean of its divisors is an integer number (28146216).

Almost surely, 2^98511749 is an apocalyptic number.

It is an amenable number.

98511749 is a deficient number, since it is larger than the sum of its proper divisors (14073115).

98511749 is a wasteful number, since it uses less digits than its factorization.

98511749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14073114.

The product of its digits is 90720, while the sum is 44.

The square root of 98511749 is about 9925.3085090591. The cubic root of 98511749 is about 461.8447486570.

The spelling of 98511749 in words is "ninety-eight million, five hundred eleven thousand, seven hundred forty-nine".