1993479 has 16 divisors (see below), whose sum is σ = 2806272. Its totient is φ = 1256288.

The previous prime is 1993477. The next prime is 1993483. The reversal of 1993479 is 9743991.

It is a cyclic number.

It is not a de Polignac number, because 1993479 - 2¹ = 1993477 is a prime.

1993479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1993479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993477) 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, 11437 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

2^1993479 is an apocalyptic number.

1993479 is a deficient number, since it is larger than the sum of its proper divisors (812793).

1993479 is a wasteful number, since it uses less digits than its factorization.

1993479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 61236, while the sum is 42.

The square root of 1993479 is about 1411.9061583547. The cubic root of 1993479 is about 125.8550234772.

The spelling of 1993479 in words is "one million, nine hundred ninety-three thousand, four hundred seventy-nine".