197408023 has 4 divisors (see below), whose sum is σ = 197810568. Its totient is φ = 197005480.

The previous prime is 197408021. The next prime is 197408027. The reversal of 197408023 is 320804791.

197408023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320804791 = 337 ⋅951943.

It is a cyclic number.

It is not a de Polignac number, because 197408023 - 2¹ = 197408021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197408023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197408021) 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, 200536 + ... + 201517.

It is an arithmetic number, because the mean of its divisors is an integer number (49452642).

Almost surely, 2^197408023 is an apocalyptic number.

197408023 is a deficient number, since it is larger than the sum of its proper divisors (402545).

197408023 is an equidigital number, since it uses as much as digits as its factorization.

197408023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402544.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 197408023 is about 14050.1965466680. The cubic root of 197408023 is about 582.2662258272.

The spelling of 197408023 in words is "one hundred ninety-seven million, four hundred eight thousand, twenty-three".