99542477 has 2 divisors, whose sum is σ = 99542478. Its totient is φ = 99542476.

The previous prime is 99542447. The next prime is 99542507. The reversal of 99542477 is 77424599.

It is a balanced prime because it is at equal distance from previous prime (99542447) and next prime (99542507).

It can be written as a sum of positive squares in only one way, i.e., 94750756 + 4791721 = 9734^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 99542477 - 2¹⁴ = 99526093 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 (99542447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49771238 + 49771239.

It is an arithmetic number, because the mean of its divisors is an integer number (49771239).

Almost surely, 2^99542477 is an apocalyptic number.

It is an amenable number.

99542477 is a deficient number, since it is larger than the sum of its proper divisors (1).

99542477 is an equidigital number, since it uses as much as digits as its factorization.

99542477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 99542477 is about 9977.0976240588. The cubic root of 99542477 is about 463.4499231582.

The spelling of 99542477 in words is "ninety-nine million, five hundred forty-two thousand, four hundred seventy-seven".