197090023 has 8 divisors (see below), whose sum is σ = 212366448. Its totient is φ = 181830144.

The previous prime is 197090011. The next prime is 197090039. The reversal of 197090023 is 320090791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197090023 - 2²¹ = 194992871 is a prime.

It is a super-2 number, since 2×197090023² = 77688954332281058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197090723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33036 + ... + 38542.

It is an arithmetic number, because the mean of its divisors is an integer number (26545806).

Almost surely, 2^197090023 is an apocalyptic number.

197090023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

197090023 is a deficient number, since it is larger than the sum of its proper divisors (15276425).

197090023 is a wasteful number, since it uses less digits than its factorization.

197090023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 197090023 is about 14038.8754179243. The cubic root of 197090023 is about 581.9534047477.

The spelling of 197090023 in words is "one hundred ninety-seven million, ninety thousand, twenty-three".