993534541 has 4 divisors (see below), whose sum is σ = 993909184. Its totient is φ = 993159900.

The previous prime is 993534517. The next prime is 993534547. The reversal of 993534541 is 145435399.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 993534541 - 2⁹ = 993534029 is a prime.

It is a super-2 number, since 2×993534541² = 1974221768320161362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993534547) 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, 183315 + ... + 188656.

It is an arithmetic number, because the mean of its divisors is an integer number (248477296).

Almost surely, 2^993534541 is an apocalyptic number.

It is an amenable number.

993534541 is a deficient number, since it is larger than the sum of its proper divisors (374643).

993534541 is a wasteful number, since it uses less digits than its factorization.

993534541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374642.

The product of its digits is 291600, while the sum is 43.

The square root of 993534541 is about 31520.3829450088. The cubic root of 993534541 is about 997.8401855600.

The spelling of 993534541 in words is "nine hundred ninety-three million, five hundred thirty-four thousand, five hundred forty-one".