197046739 has 8 divisors (see below), whose sum is σ = 211332240. Its totient is φ = 183152736.

The previous prime is 197046713. The next prime is 197046743. The reversal of 197046739 is 937640791.

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

It is not a de Polignac number, because 197046739 - 2⁷ = 197046611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197046749) 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, 96832 + ... + 98845.

It is an arithmetic number, because the mean of its divisors is an integer number (26416530).

Almost surely, 2^197046739 is an apocalyptic number.

197046739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

197046739 is a deficient number, since it is larger than the sum of its proper divisors (14285501).

197046739 is a wasteful number, since it uses less digits than its factorization.

197046739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195749.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 197046739 is about 14037.3337568072. Note that the first 3 decimals coincide. The cubic root of 197046739 is about 581.9107996563.

It can be divided in two parts, 19 and 7046739, that multiplied together give a square (133888041 = 11571²).

The spelling of 197046739 in words is "one hundred ninety-seven million, forty-six thousand, seven hundred thirty-nine".