99504973 has 4 divisors (see below), whose sum is σ = 99564448. Its totient is φ = 99445500.

The previous prime is 99504949. The next prime is 99504997. The reversal of 99504973 is 37940599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37940599 = 59 ⋅643061.

It is an interprime number because it is at equal distance from previous prime (99504949) and next prime (99504997).

It is a cyclic number.

It is not a de Polignac number, because 99504973 - 2⁵ = 99504941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99504943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27153 + ... + 30598.

It is an arithmetic number, because the mean of its divisors is an integer number (24891112).

Almost surely, 2^99504973 is an apocalyptic number.

It is an amenable number.

99504973 is a deficient number, since it is larger than the sum of its proper divisors (59475).

99504973 is a wasteful number, since it uses less digits than its factorization.

99504973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59474.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 99504973 is about 9975.2179424813. The cubic root of 99504973 is about 463.3917121318.

The spelling of 99504973 in words is "ninety-nine million, five hundred four thousand, nine hundred seventy-three".