99997433929 has 2 divisors, whose sum is σ = 99997433930. Its totient is φ = 99997433928.

The previous prime is 99997433873. The next prime is 99997433951. The reversal of 99997433929 is 92933479999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96270575625 + 3726858304 = 310275^2 + 61048^2 .

It is an emirp because it is prime and its reverse (92933479999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99997433929 - 2¹¹ = 99997431881 is a prime.

It is a super-4 number, since 4×99997433929⁴ (a number of 45 digits) contains 4444 as substring.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49998716964 + 49998716965.

It is an arithmetic number, because the mean of its divisors is an integer number (49998716965).

Almost surely, 2^99997433929 is an apocalyptic number.

It is an amenable number.

99997433929 is a deficient number, since it is larger than the sum of its proper divisors (1).

99997433929 is an equidigital number, since it uses as much as digits as its factorization.

99997433929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 267846264, while the sum is 73.

The spelling of 99997433929 in words is "ninety-nine billion, nine hundred ninety-seven million, four hundred thirty-three thousand, nine hundred twenty-nine".