1380937 has 4 divisors (see below), whose sum is σ = 1401616. Its totient is φ = 1360260.

The previous prime is 1380931. The next prime is 1380947. The reversal of 1380937 is 7390831.

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 1380937 - 2¹⁹ = 856649 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1380899 and 1380908.

It is not an unprimeable number, because it can be changed into a prime (1380931) 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, 10239 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (350404).

2^1380937 is an apocalyptic number.

It is an amenable number.

1380937 is a deficient number, since it is larger than the sum of its proper divisors (20679).

1380937 is an equidigital number, since it uses as much as digits as its factorization.

1380937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20678.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1380937 is about 1175.1327584575. The cubic root of 1380937 is about 111.3588204246.

The spelling of 1380937 in words is "one million, three hundred eighty thousand, nine hundred thirty-seven".