99993007 has 4 divisors (see below), whose sum is σ = 100349136. Its totient is φ = 99636880.

The previous prime is 99993001. The next prime is 99993053. The reversal of 99993007 is 70039999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99993007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99993001) 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, 177643 + ... + 178204.

It is an arithmetic number, because the mean of its divisors is an integer number (25087284).

Almost surely, 2^99993007 is an apocalyptic number.

99993007 is a deficient number, since it is larger than the sum of its proper divisors (356129).

99993007 is a wasteful number, since it uses less digits than its factorization.

99993007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356128.

The product of its (nonzero) digits is 137781, while the sum is 46.

The square root of 99993007 is about 9999.6503438870. The cubic root of 99993007 is about 464.1480635655.

The spelling of 99993007 in words is "ninety-nine million, nine hundred ninety-three thousand, seven".