9998761 has 8 divisors (see below), whose sum is σ = 10190880. Its totient is φ = 9808512.

The previous prime is 9998753. The next prime is 9998777. The reversal of 9998761 is 1678999.

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

It is a cyclic number.

It is not a de Polignac number, because 9998761 - 2³ = 9998753 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9998701) 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, 14521 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (1273860).

Almost surely, 2^9998761 is an apocalyptic number.

It is an amenable number.

9998761 is a deficient number, since it is larger than the sum of its proper divisors (192119).

9998761 is a wasteful number, since it uses less digits than its factorization.

9998761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 244944, while the sum is 49.

The square root of 9998761 is about 3162.0817509989. The cubic root of 9998761 is about 215.4345708204.

The spelling of 9998761 in words is "nine million, nine hundred ninety-eight thousand, seven hundred sixty-one".