998565741 has 12 divisors (see below), whose sum is σ = 1445340832. Its totient is φ = 664340616.

The previous prime is 998565697. The next prime is 998565749. The reversal of 998565741 is 147565899.

998565741 is a `hidden beast` number, since 9 + 9 + 8 + 565 + 74 + 1 = 666.

It is not a de Polignac number, because 998565741 - 2²¹ = 996468589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998565749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109531 + ... + 118296.

Almost surely, 2^998565741 is an apocalyptic number.

It is an amenable number.

998565741 is a deficient number, since it is larger than the sum of its proper divisors (446775091).

998565741 is a wasteful number, since it uses less digits than its factorization.

998565741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228320 (or 228317 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 998565741 is about 31600.0908384770. The cubic root of 998565741 is about 999.5216849178.

The spelling of 998565741 in words is "nine hundred ninety-eight million, five hundred sixty-five thousand, seven hundred forty-one".