98661731 has 4 divisors (see below), whose sum is σ = 112756272. Its totient is φ = 84567192.

The previous prime is 98661713. The next prime is 98661767. The reversal of 98661731 is 13716689.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98661731 is a prime.

It is a super-2 number, since 2×98661731² = 19468274327832722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98669731) 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, 7047260 + ... + 7047273.

It is an arithmetic number, because the mean of its divisors is an integer number (28189068).

Almost surely, 2^98661731 is an apocalyptic number.

98661731 is a deficient number, since it is larger than the sum of its proper divisors (14094541).

98661731 is a wasteful number, since it uses less digits than its factorization.

98661731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14094540.

The product of its digits is 54432, while the sum is 41.

The square root of 98661731 is about 9932.8611688677. The cubic root of 98661731 is about 462.0790126789.

The spelling of 98661731 in words is "ninety-eight million, six hundred sixty-one thousand, seven hundred thirty-one".