97556953 has 4 divisors (see below), whose sum is σ = 105061348. Its totient is φ = 90052560.

The previous prime is 97556947. The next prime is 97556959. The reversal of 97556953 is 35965579.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35965579 = 13 ⋅2766583.

It is an interprime number because it is at equal distance from previous prime (97556947) and next prime (97556959).

It can be written as a sum of positive squares in 2 ways, for example, as 5914624 + 91642329 = 2432^2 + 9573^2 .

It is a de Polignac number, because none of the positive numbers 2^k-97556953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97556897 and 97556906.

It is not an unprimeable number, because it can be changed into a prime (97556959) 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, 3752178 + ... + 3752203.

It is an arithmetic number, because the mean of its divisors is an integer number (26265337).

Almost surely, 2^97556953 is an apocalyptic number.

It is an amenable number.

97556953 is a deficient number, since it is larger than the sum of its proper divisors (7504395).

97556953 is a wasteful number, since it uses less digits than its factorization.

97556953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504394.

The product of its digits is 1275750, while the sum is 49.

The square root of 97556953 is about 9877.0923352979. The cubic root of 97556953 is about 460.3478040683.

The spelling of 97556953 in words is "ninety-seven million, five hundred fifty-six thousand, nine hundred fifty-three".