998162501 has 8 divisors (see below), whose sum is σ = 1153575360. Its totient is φ = 845954208.

The previous prime is 998162479. The next prime is 998162509. The reversal of 998162501 is 105261899.

It is a happy number.

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 998162501 - 2⁶ = 998162437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998162509) 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, 800471 + ... + 801716.

It is an arithmetic number, because the mean of its divisors is an integer number (144196920).

Almost surely, 2^998162501 is an apocalyptic number.

It is an amenable number.

998162501 is a deficient number, since it is larger than the sum of its proper divisors (155412859).

998162501 is a wasteful number, since it uses less digits than its factorization.

998162501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602283.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 998162501 is about 31593.7098328132. The cubic root of 998162501 is about 999.3871247941.

The spelling of 998162501 in words is "nine hundred ninety-eight million, one hundred sixty-two thousand, five hundred one".