99929477 has 2 divisors, whose sum is σ = 99929478. Its totient is φ = 99929476.

The previous prime is 99929449. The next prime is 99929491. The reversal of 99929477 is 77492999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70324996 + 29604481 = 8386^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 99929477 - 2⁶ = 99929413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99929437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49964738 + 49964739.

It is an arithmetic number, because the mean of its divisors is an integer number (49964739).

Almost surely, 2^99929477 is an apocalyptic number.

It is an amenable number.

99929477 is a deficient number, since it is larger than the sum of its proper divisors (1).

99929477 is an equidigital number, since it uses as much as digits as its factorization.

99929477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 56.

The square root of 99929477 is about 9996.4732280940. The cubic root of 99929477 is about 464.0497447782.

The spelling of 99929477 in words is "ninety-nine million, nine hundred twenty-nine thousand, four hundred seventy-seven".