99867492 has 120 divisors (see below), whose sum is σ = 275593472. Its totient is φ = 31492800.

The previous prime is 99867473. The next prime is 99867497. The reversal of 99867492 is 29476899.

99867492 is a `hidden beast` number, since 9 + 98 + 67 + 492 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (99867497) 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 39 ways as a sum of consecutive naturals, for example, 612603 + ... + 612765.

Almost surely, 2^99867492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99867492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137796736).

99867492 is an abundant number, since it is smaller than the sum of its proper divisors (175725980).

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

99867492 is a wasteful number, since it uses less digits than its factorization.

99867492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 260 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 99867492 is about 9993.3724037484. The cubic root of 99867492 is about 463.9537768560.

The spelling of 99867492 in words is "ninety-nine million, eight hundred sixty-seven thousand, four hundred ninety-two".