97530949 has 4 divisors (see below), whose sum is σ = 97628620. Its totient is φ = 97433280.

The previous prime is 97530947. The next prime is 97531037. The reversal of 97530949 is 94903579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94903579 = 293 ⋅323903.

It can be written as a sum of positive squares in 2 ways, for example, as 59954049 + 37576900 = 7743^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 97530949 - 2¹ = 97530947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97530899 and 97530908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97530947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47322 + ... + 49339.

It is an arithmetic number, because the mean of its divisors is an integer number (24407155).

Almost surely, 2^97530949 is an apocalyptic number.

It is an amenable number.

97530949 is a deficient number, since it is larger than the sum of its proper divisors (97671).

97530949 is a wasteful number, since it uses less digits than its factorization.

97530949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97670.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 97530949 is about 9875.7758682546. The cubic root of 97530949 is about 460.3068982257.

The spelling of 97530949 in words is "ninety-seven million, five hundred thirty thousand, nine hundred forty-nine".