97294721 has 2 divisors, whose sum is σ = 97294722. Its totient is φ = 97294720.

The previous prime is 97294699. The next prime is 97294751. The reversal of 97294721 is 12749279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58369600 + 38925121 = 7640^2 + 6239^2 .

It is a cyclic number.

It is not a de Polignac number, because 97294721 - 2¹⁸ = 97032577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97294751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48647360 + 48647361.

It is an arithmetic number, because the mean of its divisors is an integer number (48647361).

Almost surely, 2^97294721 is an apocalyptic number.

It is an amenable number.

97294721 is a deficient number, since it is larger than the sum of its proper divisors (1).

97294721 is an equidigital number, since it uses as much as digits as its factorization.

97294721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 97294721 is about 9863.8086457514. The cubic root of 97294721 is about 459.9349640254.

The spelling of 97294721 in words is "ninety-seven million, two hundred ninety-four thousand, seven hundred twenty-one".