97281193 has 4 divisors (see below), whose sum is σ = 100419328. Its totient is φ = 94143060.

The previous prime is 97281137. The next prime is 97281199. The reversal of 97281193 is 39118279.

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: 39118279 = 1511 ⋅25889.

It is a cyclic number.

It is not a de Polignac number, because 97281193 - 2²¹ = 95184041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97281199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569021 + ... + 1569082.

It is an arithmetic number, because the mean of its divisors is an integer number (25104832).

Almost surely, 2^97281193 is an apocalyptic number.

It is an amenable number.

97281193 is a deficient number, since it is larger than the sum of its proper divisors (3138135).

97281193 is a wasteful number, since it uses less digits than its factorization.

97281193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138134.

The product of its digits is 27216, while the sum is 40.

The square root of 97281193 is about 9863.1228827385. The cubic root of 97281193 is about 459.9136463611.

The spelling of 97281193 in words is "ninety-seven million, two hundred eighty-one thousand, one hundred ninety-three".