99967957 has 4 divisors (see below), whose sum is σ = 100020256. Its totient is φ = 99915660.

The previous prime is 99967937. The next prime is 99967961. The reversal of 99967957 is 75976999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99967957 - 2¹¹ = 99965909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99967895 and 99967904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99967927) 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, 23169 + ... + 27142.

It is an arithmetic number, because the mean of its divisors is an integer number (25005064).

Almost surely, 2^99967957 is an apocalyptic number.

It is an amenable number.

99967957 is a deficient number, since it is larger than the sum of its proper divisors (52299).

99967957 is a wasteful number, since it uses less digits than its factorization.

99967957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52298.

The product of its digits is 9644670, while the sum is 61.

The square root of 99967957 is about 9998.3977216352. The cubic root of 99967957 is about 464.1093012547.

The spelling of 99967957 in words is "ninety-nine million, nine hundred sixty-seven thousand, nine hundred fifty-seven".