1975479 has 8 divisors (see below), whose sum is σ = 2873472. Its totient is φ = 1197240.

The previous prime is 1975439. The next prime is 1975481. The reversal of 1975479 is 9745791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1975479 - 2⁸ = 1975223 is a prime.

1975479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1975479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29899 + ... + 29964.

It is an arithmetic number, because the mean of its divisors is an integer number (359184).

2^1975479 is an apocalyptic number.

1975479 is a deficient number, since it is larger than the sum of its proper divisors (897993).

1975479 is a wasteful number, since it uses less digits than its factorization.

1975479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59877.

The product of its digits is 79380, while the sum is 42.

The square root of 1975479 is about 1405.5173424757. The cubic root of 1975479 is about 125.4750774572.

The spelling of 1975479 in words is "one million, nine hundred seventy-five thousand, four hundred seventy-nine".