99654605 has 4 divisors (see below), whose sum is σ = 119585532. Its totient is φ = 79723680.

The previous prime is 99654593. The next prime is 99654619. The reversal of 99654605 is 50645699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16826404 + 82828201 = 4102^2 + 9101^2 .

It is not a de Polignac number, because 99654605 - 2¹⁴ = 99638221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9965456 + ... + 9965465.

It is an arithmetic number, because the mean of its divisors is an integer number (29896383).

Almost surely, 2^99654605 is an apocalyptic number.

It is an amenable number.

99654605 is a deficient number, since it is larger than the sum of its proper divisors (19930927).

99654605 is a wasteful number, since it uses less digits than its factorization.

99654605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19930926.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 99654605 is about 9982.7153119780. The cubic root of 99654605 is about 463.6238730630.

The spelling of 99654605 in words is "ninety-nine million, six hundred fifty-four thousand, six hundred five".