97520953 has 4 divisors (see below), whose sum is σ = 97568848. Its totient is φ = 97473060.

The previous prime is 97520909. The next prime is 97520957. The reversal of 97520953 is 35902579.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97520953 - 2¹⁷ = 97389881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97520957) 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, 20751 + ... + 25012.

It is an arithmetic number, because the mean of its divisors is an integer number (24392212).

Almost surely, 2^97520953 is an apocalyptic number.

It is an amenable number.

97520953 is a deficient number, since it is larger than the sum of its proper divisors (47895).

97520953 is a wasteful number, since it uses less digits than its factorization.

97520953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47894.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 97520953 is about 9875.2697684671. The cubic root of 97520953 is about 460.2911719870.

The spelling of 97520953 in words is "ninety-seven million, five hundred twenty thousand, nine hundred fifty-three".