1970217 has 16 divisors (see below), whose sum is σ = 2988480. Its totient is φ = 1282176.

The previous prime is 1970209. The next prime is 1970219. The reversal of 1970217 is 7120791.

It is not a de Polignac number, because 1970217 - 2³ = 1970209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1970219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (186780).

2^1970217 is an apocalyptic number.

It is an amenable number.

1970217 is a deficient number, since it is larger than the sum of its proper divisors (1018263).

1970217 is a wasteful number, since it uses less digits than its factorization.

1970217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1970217 is about 1403.6441856824. The cubic root of 1970217 is about 125.3635708381.

It can be divided in two parts, 1970 and 217, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1970217 in words is "one million, nine hundred seventy thousand, two hundred seventeen".