694245245 has 8 divisors (see below), whose sum is σ = 855610584. Its totient is φ = 540385344.

The previous prime is 694245241. The next prime is 694245259. The reversal of 694245245 is 542542496.

It can be written as a sum of positive squares in 4 ways, for example, as 415588996 + 278656249 = 20386^2 + 16693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 694245245 - 2² = 694245241 is a prime.

It is a super-2 number, since 2×694245245² = 963952920410220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694245241) 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 7 ways as a sum of consecutive naturals, for example, 1876154 + ... + 1876523.

It is an arithmetic number, because the mean of its divisors is an integer number (106951323).

Almost surely, 2^694245245 is an apocalyptic number.

It is an amenable number.

694245245 is a deficient number, since it is larger than the sum of its proper divisors (161365339).

694245245 is a wasteful number, since it uses less digits than its factorization.

694245245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752719.

The product of its digits is 345600, while the sum is 41.

The square root of 694245245 is about 26348.5340199412. The cubic root of 694245245 is about 885.4641271562.

The spelling of 694245245 in words is "six hundred ninety-four million, two hundred forty-five thousand, two hundred forty-five".