99371563 has 2 divisors, whose sum is σ = 99371564. Its totient is φ = 99371562.

The previous prime is 99371549. The next prime is 99371567. The reversal of 99371563 is 36517399.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99371563 - 2¹³ = 99363371 is a prime.

It is not a weakly prime, because it can be changed into another prime (99371567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49685781 + 49685782.

It is an arithmetic number, because the mean of its divisors is an integer number (49685782).

Almost surely, 2^99371563 is an apocalyptic number.

99371563 is a deficient number, since it is larger than the sum of its proper divisors (1).

99371563 is an equidigital number, since it uses as much as digits as its factorization.

99371563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 43.

The square root of 99371563 is about 9968.5286276361. The cubic root of 99371563 is about 463.1845240364.

The spelling of 99371563 in words is "ninety-nine million, three hundred seventy-one thousand, five hundred sixty-three".