97953853 has 2 divisors, whose sum is σ = 97953854. Its totient is φ = 97953852.

The previous prime is 97953841. The next prime is 97953887. The reversal of 97953853 is 35835979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96098809 + 1855044 = 9803^2 + 1362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97953853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97953797 and 97953806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97953833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48976926 + 48976927.

It is an arithmetic number, because the mean of its divisors is an integer number (48976927).

Almost surely, 2^97953853 is an apocalyptic number.

It is an amenable number.

97953853 is a deficient number, since it is larger than the sum of its proper divisors (1).

97953853 is an equidigital number, since it uses as much as digits as its factorization.

97953853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 49.

The square root of 97953853 is about 9897.1638866900. The cubic root of 97953853 is about 460.9712512442.

The spelling of 97953853 in words is "ninety-seven million, nine hundred fifty-three thousand, eight hundred fifty-three".