97798753 has 4 divisors (see below), whose sum is σ = 105321748. Its totient is φ = 90275760.

The previous prime is 97798741. The next prime is 97798777. The reversal of 97798753 is 35789779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35789779 = 31 ⋅1154509.

It can be written as a sum of positive squares in 2 ways, for example, as 10712529 + 87086224 = 3273^2 + 9332^2 .

It is a cyclic number.

It is not a de Polignac number, because 97798753 - 2⁹ = 97798241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97798694 and 97798703.

It is not an unprimeable number, because it can be changed into a prime (97796753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761478 + ... + 3761503.

It is an arithmetic number, because the mean of its divisors is an integer number (26330437).

Almost surely, 2^97798753 is an apocalyptic number.

It is an amenable number.

97798753 is a deficient number, since it is larger than the sum of its proper divisors (7522995).

97798753 is a wasteful number, since it uses less digits than its factorization.

97798753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522994.

The product of its digits is 3333960, while the sum is 55.

The square root of 97798753 is about 9889.3252044819. The cubic root of 97798753 is about 460.7278222961.

The spelling of 97798753 in words is "ninety-seven million, seven hundred ninety-eight thousand, seven hundred fifty-three".