1970723 has 4 divisors (see below), whose sum is σ = 1981128. Its totient is φ = 1960320.

The previous prime is 1970719. The next prime is 1970729. The reversal of 1970723 is 3270791.

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: 3270791 = 197 ⋅16603.

It is a cyclic number.

It is not a de Polignac number, because 1970723 - 2² = 1970719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970729) 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, 4913 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (495282).

2^1970723 is an apocalyptic number.

1970723 is a deficient number, since it is larger than the sum of its proper divisors (10405).

1970723 is a wasteful number, since it uses less digits than its factorization.

1970723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 1970723 is about 1403.8244192206. The cubic root of 1970723 is about 125.3743020650.

The spelling of 1970723 in words is "one million, nine hundred seventy thousand, seven hundred twenty-three".