1974479 has 4 divisors (see below), whose sum is σ = 2126376. Its totient is φ = 1822584.

The previous prime is 1974457. The next prime is 1974493. The reversal of 1974479 is 9744791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1974479 - 2¹⁶ = 1908943 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974079) 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 3 ways as a sum of consecutive naturals, for example, 75929 + ... + 75954.

It is an arithmetic number, because the mean of its divisors is an integer number (531594).

2^1974479 is an apocalyptic number.

1974479 is a deficient number, since it is larger than the sum of its proper divisors (151897).

1974479 is a wasteful number, since it uses less digits than its factorization.

1974479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151896.

The product of its digits is 63504, while the sum is 41.

The square root of 1974479 is about 1405.1615565479. The cubic root of 1974479 is about 125.4539017903.

The spelling of 1974479 in words is "one million, nine hundred seventy-four thousand, four hundred seventy-nine".