1697068379 has 4 divisors (see below), whose sum is σ = 1698751320. Its totient is φ = 1695385440.

The previous prime is 1697068369. The next prime is 1697068397. The reversal of 1697068379 is 9738607961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9738607961 = 101 ⋅96421861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1697068379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1697068319) 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 3 ways as a sum of consecutive naturals, for example, 839957 + ... + 841974.

It is an arithmetic number, because the mean of its divisors is an integer number (424687830).

Almost surely, 2^1697068379 is an apocalyptic number.

1697068379 is a deficient number, since it is larger than the sum of its proper divisors (1682941).

1697068379 is a wasteful number, since it uses less digits than its factorization.

1697068379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682940.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 1697068379 is about 41195.4897895389. The cubic root of 1697068379 is about 1192.7967500552.

The spelling of 1697068379 in words is "one billion, six hundred ninety-seven million, sixty-eight thousand, three hundred seventy-nine".