197489465 has 8 divisors (see below), whose sum is σ = 237598920. Its totient is φ = 157583872.

The previous prime is 197489429. The next prime is 197489471. The reversal of 197489465 is 564984791.

It can be written as a sum of positive squares in 4 ways, for example, as 36808489 + 160680976 = 6067^2 + 12676^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197489465 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48824 + ... + 52713.

It is an arithmetic number, because the mean of its divisors is an integer number (29699865).

Almost surely, 2^197489465 is an apocalyptic number.

It is an amenable number.

197489465 is a deficient number, since it is larger than the sum of its proper divisors (40109455).

197489465 is a wasteful number, since it uses less digits than its factorization.

197489465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101931.

The product of its digits is 2177280, while the sum is 53.

The square root of 197489465 is about 14053.0944990774. The cubic root of 197489465 is about 582.3462874267.

The spelling of 197489465 in words is "one hundred ninety-seven million, four hundred eighty-nine thousand, four hundred sixty-five".