99870422 has 8 divisors (see below), whose sum is σ = 157690200. Its totient is φ = 47307024.

The previous prime is 99870389. The next prime is 99870443. The reversal of 99870422 is 22407899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99870422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314047 + ... + 1314122.

It is an arithmetic number, because the mean of its divisors is an integer number (19711275).

Almost surely, 2^99870422 is an apocalyptic number.

99870422 is a deficient number, since it is larger than the sum of its proper divisors (57819778).

99870422 is a wasteful number, since it uses less digits than its factorization.

99870422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628190.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 99870422 is about 9993.5189998318. The cubic root of 99870422 is about 463.9583141058.

The spelling of 99870422 in words is "ninety-nine million, eight hundred seventy thousand, four hundred twenty-two".