97204409 has 4 divisors (see below), whose sum is σ = 97234560. Its totient is φ = 97174260.

The previous prime is 97204369. The next prime is 97204423. The reversal of 97204409 is 90440279.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90440279 = 3673 ⋅24623.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97204409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97204469) 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, 9569 + ... + 16910.

It is an arithmetic number, because the mean of its divisors is an integer number (24308640).

Almost surely, 2^97204409 is an apocalyptic number.

It is an amenable number.

97204409 is a deficient number, since it is larger than the sum of its proper divisors (30151).

97204409 is a wasteful number, since it uses less digits than its factorization.

97204409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30150.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 97204409 is about 9859.2296352200. The cubic root of 97204409 is about 459.7926113028.

The spelling of 97204409 in words is "ninety-seven million, two hundred four thousand, four hundred nine".