99992407 has 4 divisors (see below), whose sum is σ = 101362240. Its totient is φ = 98622576.

The previous prime is 99992401. The next prime is 99992413. The reversal of 99992407 is 70429999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70429999 = 2753 ⋅25583.

It is an interprime number because it is at equal distance from previous prime (99992401) and next prime (99992413).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99992407 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 (99992401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684807 + ... + 684952.

It is an arithmetic number, because the mean of its divisors is an integer number (25340560).

Almost surely, 2^99992407 is an apocalyptic number.

99992407 is a deficient number, since it is larger than the sum of its proper divisors (1369833).

99992407 is a wasteful number, since it uses less digits than its factorization.

99992407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369832.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 99992407 is about 9999.6203427930. The cubic root of 99992407 is about 464.1471352026.

The spelling of 99992407 in words is "ninety-nine million, nine hundred ninety-two thousand, four hundred seven".