1396761 has 4 divisors (see below), whose sum is σ = 1862352. Its totient is φ = 931172.

The previous prime is 1396757. The next prime is 1396789. The reversal of 1396761 is 1676931.

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 1396761 - 2² = 1396757 is a prime.

It is a super-2 number, since 2×1396761² = 3901882582242, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1396711) 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, 232791 + ... + 232796.

It is an arithmetic number, because the mean of its divisors is an integer number (465588).

2^1396761 is an apocalyptic number.

It is an amenable number.

1396761 is a deficient number, since it is larger than the sum of its proper divisors (465591).

1396761 is an equidigital number, since it uses as much as digits as its factorization.

1396761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465590.

The product of its digits is 6804, while the sum is 33.

The square root of 1396761 is about 1181.8464367252. The cubic root of 1396761 is about 111.7825553644.

It can be divided in two parts, 13967 and 61, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 1396761 in words is "one million, three hundred ninety-six thousand, seven hundred sixty-one".