1067694427 has 4 divisors (see below), whose sum is σ = 1069355560. Its totient is φ = 1066033296.

The previous prime is 1067694389. The next prime is 1067694443. The reversal of 1067694427 is 7244967601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1067694427 is a prime.

It is a super-2 number, since 2×1067694427² = 2279942778893716658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1067694497) 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, 829602 + ... + 830887.

It is an arithmetic number, because the mean of its divisors is an integer number (267338890).

Almost surely, 2^1067694427 is an apocalyptic number.

1067694427 is a deficient number, since it is larger than the sum of its proper divisors (1661133).

1067694427 is an equidigital number, since it uses as much as digits as its factorization.

1067694427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661132.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1067694427 is about 32675.5937513001. The cubic root of 1067694427 is about 1022.0739638669.

The spelling of 1067694427 in words is "one billion, sixty-seven million, six hundred ninety-four thousand, four hundred twenty-seven".