1361979 has 12 divisors (see below), whose sum is σ = 2015832. Its totient is φ = 885600.

The previous prime is 1361963. The next prime is 1361999. The reversal of 1361979 is 9791631.

It is not a de Polignac number, because 1361979 - 2⁴ = 1361963 is a prime.

It is an Ulam number.

1361979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1361929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1477 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (167986).

2^1361979 is an apocalyptic number.

1361979 is a deficient number, since it is larger than the sum of its proper divisors (653853).

1361979 is a wasteful number, since it uses less digits than its factorization.

1361979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3735 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1361979 is about 1167.0385597743. The cubic root of 1361979 is about 110.8468792057.

The spelling of 1361979 in words is "one million, three hundred sixty-one thousand, nine hundred seventy-nine".