967139497 has 2 divisors, whose sum is σ = 967139498. Its totient is φ = 967139496.

The previous prime is 967139491. The next prime is 967139543. The reversal of 967139497 is 794931769.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771950656 + 195188841 = 27784^2 + 13971^2 .

It is a cyclic number.

It is not a de Polignac number, because 967139497 - 2²³ = 958750889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (967139491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483569748 + 483569749.

It is an arithmetic number, because the mean of its divisors is an integer number (483569749).

Almost surely, 2^967139497 is an apocalyptic number.

It is an amenable number.

967139497 is a deficient number, since it is larger than the sum of its proper divisors (1).

967139497 is an equidigital number, since it uses as much as digits as its factorization.

967139497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2571912, while the sum is 55.

The square root of 967139497 is about 31098.8664905974. The cubic root of 967139497 is about 988.9242803257.

The spelling of 967139497 in words is "nine hundred sixty-seven million, one hundred thirty-nine thousand, four hundred ninety-seven".