97158473 has 4 divisors (see below), whose sum is σ = 97279380. Its totient is φ = 97037568.

The previous prime is 97158469. The next prime is 97158491. The reversal of 97158473 is 37485179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37485179 = 47 ⋅797557.

It can be written as a sum of positive squares in 2 ways, for example, as 42354064 + 54804409 = 6508^2 + 7403^2 .

It is a cyclic number.

It is not a de Polignac number, because 97158473 - 2² = 97158469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97158403) 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, 59240 + ... + 60857.

It is an arithmetic number, because the mean of its divisors is an integer number (24319845).

Almost surely, 2^97158473 is an apocalyptic number.

It is an amenable number.

97158473 is a deficient number, since it is larger than the sum of its proper divisors (120907).

97158473 is a wasteful number, since it uses less digits than its factorization.

97158473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120906.

The product of its digits is 211680, while the sum is 44.

The square root of 97158473 is about 9856.8997661537. The cubic root of 97158473 is about 459.7201716486.

The spelling of 97158473 in words is "ninety-seven million, one hundred fifty-eight thousand, four hundred seventy-three".