1967297697 has 6 divisors (see below), whose sum is σ = 2841652242. Its totient is φ = 1311531792.

The previous prime is 1967297653. The next prime is 1967297729. The reversal of 1967297697 is 7967927691.

It can be written as a sum of positive squares in only one way, i.e., 1609293456 + 358004241 = 40116^2 + 18921^2 .

It is not a de Polignac number, because 1967297697 - 2¹⁶ = 1967232161 is a prime.

It is a super-3 number, since 3×1967297697³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1967297627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109294308 + ... + 109294325.

It is an arithmetic number, because the mean of its divisors is an integer number (473608707).

Almost surely, 2^1967297697 is an apocalyptic number.

It is an amenable number.

1967297697 is a deficient number, since it is larger than the sum of its proper divisors (874354545).

1967297697 is a wasteful number, since it uses less digits than its factorization.

1967297697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218588639 (or 218588636 counting only the distinct ones).

The product of its digits is 18003384, while the sum is 63.

The square root of 1967297697 is about 44354.2297532039. The cubic root of 1967297697 is about 1253.0162247500.

The spelling of 1967297697 in words is "one billion, nine hundred sixty-seven million, two hundred ninety-seven thousand, six hundred ninety-seven".