97261961 has 2 divisors, whose sum is σ = 97261962. Its totient is φ = 97261960.

The previous prime is 97261951. The next prime is 97261991. The reversal of 97261961 is 16916279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94090000 + 3171961 = 9700^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 97261961 - 2⁶ = 97261897 is a prime.

It is not a weakly prime, because it can be changed into another prime (97261921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48630980 + 48630981.

It is an arithmetic number, because the mean of its divisors is an integer number (48630981).

Almost surely, 2^97261961 is an apocalyptic number.

It is an amenable number.

97261961 is a deficient number, since it is larger than the sum of its proper divisors (1).

97261961 is an equidigital number, since it uses as much as digits as its factorization.

97261961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 97261961 is about 9862.1478897855. The cubic root of 97261961 is about 459.8833368295.

The spelling of 97261961 in words is "ninety-seven million, two hundred sixty-one thousand, nine hundred sixty-one".