6670737397 has 4 divisors (see below), whose sum is σ = 6672406176. Its totient is φ = 6669068620.

The previous prime is 6670737371. The next prime is 6670737431. The reversal of 6670737397 is 7937370766.

It is a happy number.

6670737397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6670737397 - 2¹⁵ = 6670704629 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 (6670737197) 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, 828379 + ... + 836392.

It is an arithmetic number, because the mean of its divisors is an integer number (1668101544).

Almost surely, 2^6670737397 is an apocalyptic number.

It is an amenable number.

6670737397 is a deficient number, since it is larger than the sum of its proper divisors (1668779).

6670737397 is a wasteful number, since it uses less digits than its factorization.

6670737397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668778.

The product of its (nonzero) digits is 7001316, while the sum is 55.

The square root of 6670737397 is about 81674.5823191034. The cubic root of 6670737397 is about 1882.4550502104.

The spelling of 6670737397 in words is "six billion, six hundred seventy million, seven hundred thirty-seven thousand, three hundred ninety-seven".