693040901 has 4 divisors (see below), whose sum is σ = 792046752. Its totient is φ = 594035052.

The previous prime is 693040871. The next prime is 693040913. The reversal of 693040901 is 109040396.

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 a de Polignac number, because none of the positive numbers 2^k-693040901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693040501) 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, 49502915 + ... + 49502928.

It is an arithmetic number, because the mean of its divisors is an integer number (198011688).

Almost surely, 2^693040901 is an apocalyptic number.

It is an amenable number.

693040901 is a deficient number, since it is larger than the sum of its proper divisors (99005851).

693040901 is an equidigital number, since it uses as much as digits as its factorization.

693040901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99005850.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 693040901 is about 26325.6700009705. The cubic root of 693040901 is about 884.9518102863.

The spelling of 693040901 in words is "six hundred ninety-three million, forty thousand, nine hundred one".