196505497 has 16 divisors (see below), whose sum is σ = 208857600. Its totient is φ = 184579200.

The previous prime is 196505489. The next prime is 196505509. The reversal of 196505497 is 794505691.

It is a cyclic number.

It is not a de Polignac number, because 196505497 - 2³ = 196505489 is a prime.

It is a super-2 number, since 2×196505497² = 77228820702434018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196505437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443358 + ... + 443800.

It is an arithmetic number, because the mean of its divisors is an integer number (13053600).

Almost surely, 2^196505497 is an apocalyptic number.

It is an amenable number.

196505497 is a deficient number, since it is larger than the sum of its proper divisors (12352103).

196505497 is a wasteful number, since it uses less digits than its factorization.

196505497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 196505497 is about 14018.0418390016. The cubic root of 196505497 is about 581.3775194530.

The spelling of 196505497 in words is "one hundred ninety-six million, five hundred five thousand, four hundred ninety-seven".