1520479 has 4 divisors (see below), whose sum is σ = 1525680. Its totient is φ = 1515280.

The previous prime is 1520473. The next prime is 1520483. The reversal of 1520479 is 9740251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9740251 = 59 ⋅165089.

It is a cyclic number.

It is not a de Polignac number, because 1520479 - 2⁵ = 1520447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (381420).

2^1520479 is an apocalyptic number.

1520479 is a deficient number, since it is larger than the sum of its proper divisors (5201).

1520479 is an equidigital number, since it uses as much as digits as its factorization.

1520479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1520479 is about 1233.0770454436. The cubic root of 1520479 is about 114.9900180372.

The spelling of 1520479 in words is "one million, five hundred twenty thousand, four hundred seventy-nine".