1960171397 has 2 divisors, whose sum is σ = 1960171398. Its totient is φ = 1960171396.

The previous prime is 1960171373. The next prime is 1960171453. The reversal of 1960171397 is 7931710691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1928878561 + 31292836 = 43919^2 + 5594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1960171397 - 2⁸ = 1960171141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1960171357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980085698 + 980085699.

It is an arithmetic number, because the mean of its divisors is an integer number (980085699).

Almost surely, 2^1960171397 is an apocalyptic number.

It is an amenable number.

1960171397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1960171397 is an equidigital number, since it uses as much as digits as its factorization.

1960171397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 1960171397 is about 44273.8229318409. The cubic root of 1960171397 is about 1251.5014272110.

The spelling of 1960171397 in words is "one billion, nine hundred sixty million, one hundred seventy-one thousand, three hundred ninety-seven".