693140641 has 4 divisors (see below), whose sum is σ = 696194352. Its totient is φ = 690086932.

The previous prime is 693140611. The next prime is 693140759. The reversal of 693140641 is 146041396.

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-693140641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 693140597 and 693140606.

It is not an unprimeable number, because it can be changed into a prime (693140611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526515 + ... + 1526968.

It is an arithmetic number, because the mean of its divisors is an integer number (174048588).

Almost surely, 2^693140641 is an apocalyptic number.

It is an amenable number.

693140641 is a deficient number, since it is larger than the sum of its proper divisors (3053711).

693140641 is a wasteful number, since it uses less digits than its factorization.

693140641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053710.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 693140641 is about 26327.5642815662. The cubic root of 693140641 is about 884.9942612968.

The spelling of 693140641 in words is "six hundred ninety-three million, one hundred forty thousand, six hundred forty-one".