99867742 has 16 divisors (see below), whose sum is σ = 162045072. Its totient is φ = 45887040.

The previous prime is 99867731. The next prime is 99867751. The reversal of 99867742 is 24776899.

It is a self number, because there is not a number n which added to its sum of digits gives 99867742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2559 + ... + 14362.

It is an arithmetic number, because the mean of its divisors is an integer number (10127817).

Almost surely, 2^99867742 is an apocalyptic number.

99867742 is a deficient number, since it is larger than the sum of its proper divisors (62177330).

99867742 is a wasteful number, since it uses less digits than its factorization.

99867742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163.

The product of its digits is 1524096, while the sum is 52.

The square root of 99867742 is about 9993.3849120306. The cubic root of 99867742 is about 463.9541639968.

The spelling of 99867742 in words is "ninety-nine million, eight hundred sixty-seven thousand, seven hundred forty-two".