694740481 has 4 divisors (see below), whose sum is σ = 701902852. Its totient is φ = 687578112.

The previous prime is 694740469. The next prime is 694740533. The reversal of 694740481 is 184047496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377330625 + 317409856 = 19425^2 + 17816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694740481 is a prime.

It is a super-2 number, since 2×694740481² = 965328671880222722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694740401) 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, 3581040 + ... + 3581233.

It is an arithmetic number, because the mean of its divisors is an integer number (175475713).

Almost surely, 2^694740481 is an apocalyptic number.

It is an amenable number.

694740481 is a deficient number, since it is larger than the sum of its proper divisors (7162371).

694740481 is an equidigital number, since it uses as much as digits as its factorization.

694740481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7162370.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 694740481 is about 26357.9301349708. The cubic root of 694740481 is about 885.6746240887.

The spelling of 694740481 in words is "six hundred ninety-four million, seven hundred forty thousand, four hundred eighty-one".