207196457 has 4 divisors (see below), whose sum is σ = 223134660. Its totient is φ = 191258256.

The previous prime is 207196447. The next prime is 207196477. The reversal of 207196457 is 754691702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754691702 = 2 ⋅377345851.

It can be written as a sum of positive squares in 2 ways, for example, as 87534736 + 119661721 = 9356^2 + 10939^2 .

It is a cyclic number.

It is not a de Polignac number, because 207196457 - 2⁶ = 207196393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207196417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7969082 + ... + 7969107.

It is an arithmetic number, because the mean of its divisors is an integer number (55783665).

Almost surely, 2^207196457 is an apocalyptic number.

It is an amenable number.

207196457 is a deficient number, since it is larger than the sum of its proper divisors (15938203).

207196457 is a wasteful number, since it uses less digits than its factorization.

207196457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15938202.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 207196457 is about 14394.3203035086. The cubic root of 207196457 is about 591.7352505390.

The spelling of 207196457 in words is "two hundred seven million, one hundred ninety-six thousand, four hundred fifty-seven".