695048721 has 4 divisors (see below), whose sum is σ = 926731632. Its totient is φ = 463365812.

The previous prime is 695048719. The next prime is 695048729. The reversal of 695048721 is 127840596.

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 not a de Polignac number, because 695048721 - 2¹ = 695048719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (695048729) 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, 115841451 + ... + 115841456.

It is an arithmetic number, because the mean of its divisors is an integer number (231682908).

Almost surely, 2^695048721 is an apocalyptic number.

It is an amenable number.

695048721 is a deficient number, since it is larger than the sum of its proper divisors (231682911).

695048721 is a wasteful number, since it uses less digits than its factorization.

695048721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231682910.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 695048721 is about 26363.7766831689. The cubic root of 695048721 is about 885.8055890504.

The spelling of 695048721 in words is "six hundred ninety-five million, forty-eight thousand, seven hundred twenty-one".