197287953 has 8 divisors (see below), whose sum is σ = 263119488. Its totient is φ = 131490864.

The previous prime is 197287949. The next prime is 197287973. The reversal of 197287953 is 359782791.

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

It is not a de Polignac number, because 197287953 - 2² = 197287949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197287896 and 197287905.

It is not an unprimeable number, because it can be changed into a prime (197287973) 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, 11400 + ... + 22902.

It is an arithmetic number, because the mean of its divisors is an integer number (32889936).

Almost surely, 2^197287953 is an apocalyptic number.

It is an amenable number.

197287953 is a deficient number, since it is larger than the sum of its proper divisors (65831535).

197287953 is a wasteful number, since it uses less digits than its factorization.

197287953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17223.

The product of its digits is 952560, while the sum is 51.

The square root of 197287953 is about 14045.9230027791. The cubic root of 197287953 is about 582.1481507800.

The spelling of 197287953 in words is "one hundred ninety-seven million, two hundred eighty-seven thousand, nine hundred fifty-three".