197453399 has 8 divisors (see below), whose sum is σ = 231973392. Its totient is φ = 165695040.

The previous prime is 197453387. The next prime is 197453407. The reversal of 197453399 is 993354791.

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

It is a cyclic number.

It is not a de Polignac number, because 197453399 - 2⁴ = 197453383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197453329) 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, 690254 + ... + 690539.

It is an arithmetic number, because the mean of its divisors is an integer number (28996674).

Almost surely, 2^197453399 is an apocalyptic number.

197453399 is a deficient number, since it is larger than the sum of its proper divisors (34519993).

197453399 is a wasteful number, since it uses less digits than its factorization.

197453399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380817.

The product of its digits is 918540, while the sum is 50.

The square root of 197453399 is about 14051.8112355668. The cubic root of 197453399 is about 582.3108354430.

The spelling of 197453399 in words is "one hundred ninety-seven million, four hundred fifty-three thousand, three hundred ninety-nine".