97019873 has 2 divisors, whose sum is σ = 97019874. Its totient is φ = 97019872.

The previous prime is 97019861. The next prime is 97019887. The reversal of 97019873 is 37891079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96668224 + 351649 = 9832^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 97019873 - 2⁸ = 97019617 is a prime.

It is a super-2 number, since 2×97019873² = 18825711513872258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97019803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48509936 + 48509937.

It is an arithmetic number, because the mean of its divisors is an integer number (48509937).

Almost surely, 2^97019873 is an apocalyptic number.

It is an amenable number.

97019873 is a deficient number, since it is larger than the sum of its proper divisors (1).

97019873 is an equidigital number, since it uses as much as digits as its factorization.

97019873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 97019873 is about 9849.8666488435. The cubic root of 97019873 is about 459.5014652536.

The spelling of 97019873 in words is "ninety-seven million, nineteen thousand, eight hundred seventy-three".