99993403 has 4 divisors (see below), whose sum is σ = 100712920. Its totient is φ = 99273888.

The previous prime is 99993359. The next prime is 99993407. The reversal of 99993403 is 30439999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30439999 = 41 ⋅742439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99993403 is a prime.

It is a super-4 number, since 4×99993403⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99993407) 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, 359550 + ... + 359827.

It is an arithmetic number, because the mean of its divisors is an integer number (25178230).

Almost surely, 2^99993403 is an apocalyptic number.

99993403 is a deficient number, since it is larger than the sum of its proper divisors (719517).

99993403 is a wasteful number, since it uses less digits than its factorization.

99993403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719516.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 99993403 is about 9999.6701445598. The cubic root of 99993403 is about 464.1486762830.

The spelling of 99993403 in words is "ninety-nine million, nine hundred ninety-three thousand, four hundred three".