99429401 has 4 divisors (see below), whose sum is σ = 99452112. Its totient is φ = 99406692.

The previous prime is 99429389. The next prime is 99429409. The reversal of 99429401 is 10492499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99429401 - 2²² = 95235097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99429409) 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, 2471 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (24863028).

Almost surely, 2^99429401 is an apocalyptic number.

It is an amenable number.

99429401 is a deficient number, since it is larger than the sum of its proper divisors (22711).

99429401 is a wasteful number, since it uses less digits than its factorization.

99429401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22710.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 99429401 is about 9971.4292355710. The cubic root of 99429401 is about 463.2743702320.

The spelling of 99429401 in words is "ninety-nine million, four hundred twenty-nine thousand, four hundred one".