1970827 has 4 divisors (see below), whose sum is σ = 2086776. Its totient is φ = 1854880.

The previous prime is 1970809. The next prime is 1970867. The reversal of 1970827 is 7280791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7280791 = 7 ⋅1040113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1970792 and 1970801.

It is not an unprimeable number, because it can be changed into a prime (1970867) 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, 57949 + ... + 57982.

It is an arithmetic number, because the mean of its divisors is an integer number (521694).

2^1970827 is an apocalyptic number.

1970827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1970827 is a deficient number, since it is larger than the sum of its proper divisors (115949).

1970827 is a wasteful number, since it uses less digits than its factorization.

1970827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115948.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1970827 is about 1403.8614604013. The cubic root of 1970827 is about 125.3765074651.

The spelling of 1970827 in words is "one million, nine hundred seventy thousand, eight hundred twenty-seven".