99998061 has 8 divisors (see below), whose sum is σ = 137928480. Its totient is φ = 64366512.

The previous prime is 99998051. The next prime is 99998071. The reversal of 99998061 is 16089999.

It is an interprime number because it is at equal distance from previous prime (99998051) and next prime (99998071).

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

It is a de Polignac number, because none of the positive numbers 2^k-99998061 is a prime.

It is a super-2 number, since 2×99998061² = 19999224407519442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99997995 and 99998013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99998021) 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, 574615 + ... + 574788.

It is an arithmetic number, because the mean of its divisors is an integer number (17241060).

Almost surely, 2^99998061 is an apocalyptic number.

It is an amenable number.

99998061 is a deficient number, since it is larger than the sum of its proper divisors (37930419).

99998061 is a wasteful number, since it uses less digits than its factorization.

99998061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149435.

The product of its (nonzero) digits is 314928, while the sum is 51.

The square root of 99998061 is about 9999.9030495300. The cubic root of 99998061 is about 464.1558833283.

The spelling of 99998061 in words is "ninety-nine million, nine hundred ninety-eight thousand, sixty-one".