693948145 has 16 divisors (see below), whose sum is σ = 922004928. Its totient is φ = 497154240.

The previous prime is 693948127. The next prime is 693948149. The reversal of 693948145 is 541849396.

It is a happy number.

It is not a de Polignac number, because 693948145 - 2²⁹ = 157077233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693948149) by changing a digit.

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, 90474 + ... + 97843.

It is an arithmetic number, because the mean of its divisors is an integer number (57625308).

Almost surely, 2^693948145 is an apocalyptic number.

It is an amenable number.

693948145 is a deficient number, since it is larger than the sum of its proper divisors (228056783).

693948145 is a wasteful number, since it uses less digits than its factorization.

693948145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188400.

The product of its digits is 933120, while the sum is 49.

The square root of 693948145 is about 26342.8955318127. The cubic root of 693948145 is about 885.3377986338.

The spelling of 693948145 in words is "six hundred ninety-three million, nine hundred forty-eight thousand, one hundred forty-five".