99422690 has 8 divisors (see below), whose sum is σ = 178960860. Its totient is φ = 39769072.

The previous prime is 99422651. The next prime is 99422693. The reversal of 99422690 is 9622499.

It can be written as a sum of positive squares in 2 ways, for example, as 99420841 + 1849 = 9971^2 + 43^2 .

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

It is a super-2 number, since 2×99422690² = 19769742573672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99422693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4971125 + ... + 4971144.

Almost surely, 2^99422690 is an apocalyptic number.

99422690 is a deficient number, since it is larger than the sum of its proper divisors (79538170).

99422690 is a wasteful number, since it uses less digits than its factorization.

99422690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942276.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 99422690 is about 9971.0927184537. The cubic root of 99422690 is about 463.2639470767.

The spelling of 99422690 in words is "ninety-nine million, four hundred twenty-two thousand, six hundred ninety".