1979073 has 20 divisors (see below), whose sum is σ = 3018708. Its totient is φ = 1291680.

The previous prime is 1979069. The next prime is 1979077. The reversal of 1979073 is 3709791.

It is an interprime number because it is at equal distance from previous prime (1979069) and next prime (1979077).

It can be written as a sum of positive squares in 2 ways, for example, as 1034289 + 944784 = 1017^2 + 972^2 .

It is not a de Polignac number, because 1979073 - 2² = 1979069 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1979077) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4063 + ... + 4523.

2^1979073 is an apocalyptic number.

It is an amenable number.

1979073 is a deficient number, since it is larger than the sum of its proper divisors (1039635).

1979073 is an equidigital number, since it uses as much as digits as its factorization.

1979073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1979073 is about 1406.7952942770. The cubic root of 1979073 is about 125.5511238621.

The spelling of 1979073 in words is "one million, nine hundred seventy-nine thousand, seventy-three".