1396670 has 16 divisors (see below), whose sum is σ = 2742768. Its totient is φ = 507840.

The previous prime is 1396667. The next prime is 1396673. The reversal of 1396670 is 766931.

It is an interprime number because it is at equal distance from previous prime (1396667) and next prime (1396673).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396673) 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, 6239 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (171423).

2^1396670 is an apocalyptic number.

1396670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1396670 is a deficient number, since it is larger than the sum of its proper divisors (1346098).

1396670 is a wasteful number, since it uses less digits than its factorization.

1396670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12715.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1396670 is about 1181.8079370185. The cubic root of 1396670 is about 111.7801277399.

The spelling of 1396670 in words is "one million, three hundred ninety-six thousand, six hundred seventy".