99976422 has 64 divisors (see below), whose sum is σ = 260596224. Its totient is φ = 24814080.

The previous prime is 99976421. The next prime is 99976441. The reversal of 99976422 is 22467999.

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 (99976421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3897 + ... + 14667.

It is an arithmetic number, because the mean of its divisors is an integer number (4071816).

Almost surely, 2^99976422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99976422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130298112).

99976422 is an abundant number, since it is smaller than the sum of its proper divisors (160619802).

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

99976422 is a wasteful number, since it uses less digits than its factorization.

99976422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813.

The product of its digits is 489888, while the sum is 48.

The square root of 99976422 is about 9998.8210305015. The cubic root of 99976422 is about 464.1224007000.

It can be divided in two parts, 999 and 76422, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 99976422 in words is "ninety-nine million, nine hundred seventy-six thousand, four hundred twenty-two".