1979534 has 16 divisors (see below), whose sum is σ = 3160080. Its totient is φ = 927360.

The previous prime is 1979507. The next prime is 1979539. The reversal of 1979534 is 4359791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4064 + ... + 4524.

It is an arithmetic number, because the mean of its divisors is an integer number (197505).

2^1979534 is an apocalyptic number.

1979534 is a deficient number, since it is larger than the sum of its proper divisors (1180546).

1979534 is a wasteful number, since it uses less digits than its factorization.

1979534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its digits is 34020, while the sum is 38.

The square root of 1979534 is about 1406.9591323134. The cubic root of 1979534 is about 125.5608716202.

The spelling of 1979534 in words is "one million, nine hundred seventy-nine thousand, five hundred thirty-four".