99890342 has 4 divisors (see below), whose sum is σ = 149835516. Its totient is φ = 49945170.

The previous prime is 99890341. The next prime is 99890359. The reversal of 99890342 is 24309899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24309899 = 223 ⋅109013.

It is a super-3 number, since 3×99890342³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99890293 and 99890302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99890341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24972584 + ... + 24972587.

It is an arithmetic number, because the mean of its divisors is an integer number (37458879).

Almost surely, 2^99890342 is an apocalyptic number.

99890342 is a deficient number, since it is larger than the sum of its proper divisors (49945174).

99890342 is a wasteful number, since it uses less digits than its factorization.

99890342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49945173.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 99890342 is about 9994.5155960657. The cubic root of 99890342 is about 463.9891588579.

The spelling of 99890342 in words is "ninety-nine million, eight hundred ninety thousand, three hundred forty-two".