993066541 has 4 divisors (see below), whose sum is σ = 993686112. Its totient is φ = 992446972.

The previous prime is 993066533. The next prime is 993066551. The reversal of 993066541 is 145660399.

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: 145660399 = 9157 ⋅15907.

It is a cyclic number.

It is not a de Polignac number, because 993066541 - 2³ = 993066533 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 (993066511) 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, 307375 + ... + 310588.

It is an arithmetic number, because the mean of its divisors is an integer number (248421528).

Almost surely, 2^993066541 is an apocalyptic number.

It is an amenable number.

993066541 is a deficient number, since it is larger than the sum of its proper divisors (619571).

993066541 is a wasteful number, since it uses less digits than its factorization.

993066541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619570.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 993066541 is about 31512.9583028950. The cubic root of 993066541 is about 997.6834849015.

The spelling of 993066541 in words is "nine hundred ninety-three million, sixty-six thousand, five hundred forty-one".