99998740 has 24 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 39909408.

The previous prime is 99998663. The next prime is 99998749. The reversal of 99998740 is 4789999.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99998749) 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, 3861 + ... + 14659.

It is an arithmetic number, because the mean of its divisors is an integer number (8769600).

Almost surely, 2^99998740 is an apocalyptic number.

It is an amenable number.

99998740 is an abundant number, since it is smaller than the sum of its proper divisors (110471660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99998740 is a wasteful number, since it uses less digits than its factorization.

99998740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271 (or 11269 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 55.

The square root of 99998740 is about 9999.9369998015. The cubic root of 99998740 is about 464.1569338858.

The spelling of 99998740 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred forty".