993251945 has 16 divisors (see below), whose sum is σ = 1442302848. Its totient is φ = 641022720.

The previous prime is 993251933. The next prime is 993251951. The reversal of 993251945 is 549152399.

It is not a de Polignac number, because 993251945 - 2⁶ = 993251881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993251945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834071 + ... + 835260.

It is an arithmetic number, because the mean of its divisors is an integer number (90143928).

Almost surely, 2^993251945 is an apocalyptic number.

It is an amenable number.

993251945 is a deficient number, since it is larger than the sum of its proper divisors (449050903).

993251945 is a wasteful number, since it uses less digits than its factorization.

993251945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669360.

The product of its digits is 437400, while the sum is 47.

The square root of 993251945 is about 31515.8998760943. The cubic root of 993251945 is about 997.7455696967.

The spelling of 993251945 in words is "nine hundred ninety-three million, two hundred fifty-one thousand, nine hundred forty-five".