1397716 has 24 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 647712.

The previous prime is 1397681. The next prime is 1397717. The reversal of 1397716 is 6177931.

It is a happy number.

It is a super-2 number, since 2×1397716² = 3907220033312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

2^1397716 is an apocalyptic number.

It is an amenable number.

1397716 is a deficient number, since it is larger than the sum of its proper divisors (1233164).

1397716 is a wasteful number, since it uses less digits than its factorization.

1397716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its digits is 7938, while the sum is 34.

The square root of 1397716 is about 1182.2503964897. The cubic root of 1397716 is about 111.8080257252.

The spelling of 1397716 in words is "one million, three hundred ninety-seven thousand, seven hundred sixteen".