99993490 has 32 divisors (see below), whose sum is σ = 195022080. Its totient is φ = 36766464.

The previous prime is 99993469. The next prime is 99993497. The reversal of 99993490 is 9439999.

It is not an unprimeable number, because it can be changed into a prime (99993497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471 + ... + 14149.

It is an arithmetic number, because the mean of its divisors is an integer number (6094440).

Almost surely, 2^99993490 is an apocalyptic number.

99993490 is a deficient number, since it is larger than the sum of its proper divisors (95028590).

99993490 is a wasteful number, since it uses less digits than its factorization.

99993490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746.

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 99993490 is about 9999.6744947023. The cubic root of 99993490 is about 464.1488108949.

The spelling of 99993490 in words is "ninety-nine million, nine hundred ninety-three thousand, four hundred ninety".