30899223 has 12 divisors (see below), whose sum is σ = 44801640. Its totient is φ = 20521296.

The previous prime is 30899207. The next prime is 30899237. The reversal of 30899223 is 32299803.

It is not a de Polignac number, because 30899223 - 2⁴ = 30899207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30899203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3961 + ... + 8802.

It is an arithmetic number, because the mean of its divisors is an integer number (3733470).

Almost surely, 2^30899223 is an apocalyptic number.

30899223 is a deficient number, since it is larger than the sum of its proper divisors (13902417).

30899223 is a wasteful number, since it uses less digits than its factorization.

30899223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13038 (or 13035 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30899223 is about 5558.7069539597. The cubic root of 30899223 is about 313.7972882592.

The spelling of 30899223 in words is "thirty million, eight hundred ninety-nine thousand, two hundred twenty-three".