197673650 has 12 divisors (see below), whose sum is σ = 367673082. Its totient is φ = 79069440.

The previous prime is 197673617. The next prime is 197673653. The reversal of 197673650 is 56376791.

It can be written as a sum of positive squares in 3 ways, for example, as 185695129 + 11978521 = 13627^2 + 3461^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197673653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1976687 + ... + 1976786.

Almost surely, 2^197673650 is an apocalyptic number.

197673650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197673650 is a deficient number, since it is larger than the sum of its proper divisors (169999432).

197673650 is a wasteful number, since it uses less digits than its factorization.

197673650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953485 (or 3953480 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 197673650 is about 14059.6461548646. The cubic root of 197673650 is about 582.5272694412.

The spelling of 197673650 in words is "one hundred ninety-seven million, six hundred seventy-three thousand, six hundred fifty".