670336397 has 4 divisors (see below), whose sum is σ = 705617280. Its totient is φ = 635055516.

The previous prime is 670336361. The next prime is 670336411. The reversal of 670336397 is 793633076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670336397 - 2¹⁰ = 670335373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670336327) 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, 17640413 + ... + 17640450.

It is an arithmetic number, because the mean of its divisors is an integer number (176404320).

Almost surely, 2^670336397 is an apocalyptic number.

It is an amenable number.

670336397 is a deficient number, since it is larger than the sum of its proper divisors (35280883).

670336397 is a wasteful number, since it uses less digits than its factorization.

670336397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280882.

The product of its (nonzero) digits is 428652, while the sum is 44.

The square root of 670336397 is about 25890.8554706097. The cubic root of 670336397 is about 875.1804349530.

The spelling of 670336397 in words is "six hundred seventy million, three hundred thirty-six thousand, three hundred ninety-seven".