694311345 has 80 divisors (see below), whose sum is σ = 1531918080. Its totient is φ = 292968576.

The previous prime is 694311257. The next prime is 694311347. The reversal of 694311345 is 543113496.

It is not a de Polignac number, because 694311345 - 2⁹ = 694310833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (694311347) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 27436 + ... + 46274.

It is an arithmetic number, because the mean of its divisors is an integer number (19148976).

Almost surely, 2^694311345 is an apocalyptic number.

694311345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

694311345 is an abundant number, since it is smaller than the sum of its proper divisors (837606735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

694311345 is a wasteful number, since it uses less digits than its factorization.

694311345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18876 (or 18867 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 694311345 is about 26349.7883293206. The cubic root of 694311345 is about 885.4922283312.

The spelling of 694311345 in words is "six hundred ninety-four million, three hundred eleven thousand, three hundred forty-five".