967997 has 4 divisors (see below), whose sum is σ = 1024956. Its totient is φ = 911040.

The previous prime is 967979. The next prime is 967999. The reversal of 967997 is 799769.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799769 = 31 ⋅25799.

It can be written as a sum of positive squares in 2 ways, for example, as 630436 + 337561 = 794^2 + 581^2 .

It is a cyclic number.

It is not a de Polignac number, because 967997 - 2¹² = 963901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (967999) 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, 28454 + ... + 28487.

It is an arithmetic number, because the mean of its divisors is an integer number (256239).

2⁹⁶⁷⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

967997 is a deficient number, since it is larger than the sum of its proper divisors (56959).

967997 is a wasteful number, since it uses less digits than its factorization.

967997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56958.

The product of its digits is 214326, while the sum is 47.

The square root of 967997 is about 983.8683855069. The cubic root of 967997 is about 98.9216466730.

The spelling of 967997 in words is "nine hundred sixty-seven thousand, nine hundred ninety-seven".