99997356 has 12 divisors (see below), whose sum is σ = 233327192. Its totient is φ = 33332448.

The previous prime is 99997267. The next prime is 99997357. The reversal of 99997356 is 65379999.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 99997296 and 99997305.

It is not an unprimeable number, because it can be changed into a prime (99997357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166545 + ... + 4166568.

Almost surely, 2^99997356 is an apocalyptic number.

It is an amenable number.

99997356 is an abundant number, since it is smaller than the sum of its proper divisors (133329836).

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

99997356 is a wasteful number, since it uses less digits than its factorization.

99997356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333120 (or 8333118 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 57.

The square root of 99997356 is about 9999.8677991261. The cubic root of 99997356 is about 464.1547925383.

The spelling of 99997356 in words is "ninety-nine million, nine hundred ninety-seven thousand, three hundred fifty-six".