694111121 has 4 divisors (see below), whose sum is σ = 757212144. Its totient is φ = 631010100.

The previous prime is 694111109. The next prime is 694111147. The reversal of 694111121 is 121111496.

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 694111121 - 2¹⁰ = 694110097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (694111721) 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, 31550495 + ... + 31550516.

It is an arithmetic number, because the mean of its divisors is an integer number (189303036).

Almost surely, 2^694111121 is an apocalyptic number.

It is an amenable number.

694111121 is a deficient number, since it is larger than the sum of its proper divisors (63101023).

694111121 is a wasteful number, since it uses less digits than its factorization.

694111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63101022.

The product of its digits is 432, while the sum is 26.

The square root of 694111121 is about 26345.9887079608. The cubic root of 694111121 is about 885.4071013716.

The spelling of 694111121 in words is "six hundred ninety-four million, one hundred eleven thousand, one hundred twenty-one".