99729434 has 16 divisors (see below), whose sum is σ = 176860800. Its totient is φ = 41267184.

The previous prime is 99729419. The next prime is 99729437. The reversal of 99729434 is 43492799.

It is not an unprimeable number, because it can be changed into a prime (99729437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122414 + ... + 123225.

It is an arithmetic number, because the mean of its divisors is an integer number (11053800).

Almost surely, 2^99729434 is an apocalyptic number.

99729434 is a deficient number, since it is larger than the sum of its proper divisors (77131366).

99729434 is a wasteful number, since it uses less digits than its factorization.

99729434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245677.

The product of its digits is 489888, while the sum is 47.

The square root of 99729434 is about 9986.4625368546. The cubic root of 99729434 is about 463.7398865380.

The spelling of 99729434 in words is "ninety-nine million, seven hundred twenty-nine thousand, four hundred thirty-four".