99991962 has 32 divisors (see below), whose sum is σ = 253948800. Its totient is φ = 28569024.

The previous prime is 99991951. The next prime is 99991981. The reversal of 99991962 is 26919999.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 99991899 and 99991908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131887 + ... + 132642.

It is an arithmetic number, because the mean of its divisors is an integer number (7935900).

Almost surely, 2^99991962 is an apocalyptic number.

99991962 is an abundant number, since it is smaller than the sum of its proper divisors (153956838).

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

99991962 is a wasteful number, since it uses less digits than its factorization.

99991962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264547 (or 264541 counting only the distinct ones).

The product of its digits is 708588, while the sum is 54.

The square root of 99991962 is about 9999.5980919235. The cubic root of 99991962 is about 464.1464466644.

The spelling of 99991962 in words is "ninety-nine million, nine hundred ninety-one thousand, nine hundred sixty-two".