998512601 has 8 divisors (see below), whose sum is σ = 1033840200. Its totient is φ = 963244800.

The previous prime is 998512597. The next prime is 998512607. The reversal of 998512601 is 106215899.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39000025 + 959512576 = 6245^2 + 30976^2 .

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 998512601 - 2² = 998512597 is a prime.

It is a super-3 number, since 3×998512601³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998512607) 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, 20495 + ... + 49163.

It is an arithmetic number, because the mean of its divisors is an integer number (129230025).

Almost surely, 2^998512601 is an apocalyptic number.

It is an amenable number.

998512601 is a deficient number, since it is larger than the sum of its proper divisors (35327599).

998512601 is a wasteful number, since it uses less digits than its factorization.

998512601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29899.

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

The square root of 998512601 is about 31599.2500069226. The cubic root of 998512601 is about 999.5039543127.

The spelling of 998512601 in words is "nine hundred ninety-eight million, five hundred twelve thousand, six hundred one".