1370985 has 32 divisors (see below), whose sum is σ = 2737152. Its totient is φ = 569280.

The previous prime is 1370981. The next prime is 1370987. The reversal of 1370985 is 5890731.

It is not a de Polignac number, because 1370985 - 2² = 1370981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1370981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (85536).

2^1370985 is an apocalyptic number.

1370985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1370985 is a deficient number, since it is larger than the sum of its proper divisors (1366167).

1370985 is a wasteful number, since it uses less digits than its factorization.

1370985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1370985 is about 1170.8906866143. The cubic root of 1370985 is about 111.0906653120.

The spelling of 1370985 in words is "one million, three hundred seventy thousand, nine hundred eighty-five".