1970993 has 4 divisors (see below), whose sum is σ = 2019108. Its totient is φ = 1922880.

The previous prime is 1970987. The next prime is 1970999. The reversal of 1970993 is 3990791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3990791 = 7 ⋅570113.

It is an interprime number because it is at equal distance from previous prime (1970987) and next prime (1970999).

It can be written as a sum of positive squares in 2 ways, for example, as 734449 + 1236544 = 857^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970993 - 2⁴ = 1970977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970999) 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, 23996 + ... + 24077.

It is an arithmetic number, because the mean of its divisors is an integer number (504777).

2^1970993 is an apocalyptic number.

It is an amenable number.

1970993 is a deficient number, since it is larger than the sum of its proper divisors (48115).

1970993 is an equidigital number, since it uses as much as digits as its factorization.

1970993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48114.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 1970993 is about 1403.9205817994. The cubic root of 1970993 is about 125.3800274622.

The spelling of 1970993 in words is "one million, nine hundred seventy thousand, nine hundred ninety-three".