993673145 has 8 divisors (see below), whose sum is σ = 1195948104. Its totient is φ = 792578304.

The previous prime is 993673129. The next prime is 993673151. The reversal of 993673145 is 541376399.

It can be written as a sum of positive squares in 4 ways, for example, as 21418384 + 972254761 = 4628^2 + 31181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 993673145 - 2⁴ = 993673129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 993673145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293174 + ... + 296543.

It is an arithmetic number, because the mean of its divisors is an integer number (149493513).

Almost surely, 2^993673145 is an apocalyptic number.

It is an amenable number.

993673145 is a deficient number, since it is larger than the sum of its proper divisors (202274959).

993673145 is a wasteful number, since it uses less digits than its factorization.

993673145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590059.

The product of its digits is 612360, while the sum is 47.

The square root of 993673145 is about 31522.5815091341. The cubic root of 993673145 is about 997.8865849567.

The spelling of 993673145 in words is "nine hundred ninety-three million, six hundred seventy-three thousand, one hundred forty-five".