99504487 has 2 divisors, whose sum is σ = 99504488. Its totient is φ = 99504486.

The previous prime is 99504469. The next prime is 99504497. The reversal of 99504487 is 78440599.

It is a strong prime.

It is an emirp because it is prime and its reverse (78440599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99504487 - 2¹⁵ = 99471719 is a prime.

It is a super-2 number, since 2×99504487² = 19802285866266338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99504407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49752243 + 49752244.

It is an arithmetic number, because the mean of its divisors is an integer number (49752244).

Almost surely, 2^99504487 is an apocalyptic number.

99504487 is a deficient number, since it is larger than the sum of its proper divisors (1).

99504487 is an equidigital number, since it uses as much as digits as its factorization.

99504487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 99504487 is about 9975.1935820815. The cubic root of 99504487 is about 463.3909577014.

The spelling of 99504487 in words is "ninety-nine million, five hundred four thousand, four hundred eighty-seven".