97320961 has 2 divisors, whose sum is σ = 97320962. Its totient is φ = 97320960.

The previous prime is 97320947. The next prime is 97320967. The reversal of 97320961 is 16902379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96648561 + 672400 = 9831^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 97320961 - 2⁷ = 97320833 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97320961.

It is not a weakly prime, because it can be changed into another prime (97320967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48660480 + 48660481.

It is an arithmetic number, because the mean of its divisors is an integer number (48660481).

It is a Proth number, since it is equal to 1485 ⋅ 2¹⁶ + 1 and 1485 < 2¹⁶.

Almost surely, 2^97320961 is an apocalyptic number.

It is an amenable number.

97320961 is a deficient number, since it is larger than the sum of its proper divisors (1).

97320961 is an equidigital number, since it uses as much as digits as its factorization.

97320961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 97320961 is about 9865.1386710983. The cubic root of 97320961 is about 459.9763078535.

The spelling of 97320961 in words is "ninety-seven million, three hundred twenty thousand, nine hundred sixty-one".