1506729 has 16 divisors (see below), whose sum is σ = 2315648. Its totient is φ = 853632.

The previous prime is 1506721. The next prime is 1506731. The reversal of 1506729 is 9276051.

It is not a de Polignac number, because 1506729 - 2³ = 1506721 is a prime.

It is a Duffinian number.

1506729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1506696 and 1506705.

It is not an unprimeable number, because it can be changed into a prime (1506721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3069 + ... + 3525.

It is an arithmetic number, because the mean of its divisors is an integer number (144728).

2^1506729 is an apocalyptic number.

It is an amenable number.

1506729 is a deficient number, since it is larger than the sum of its proper divisors (808919).

1506729 is a wasteful number, since it uses less digits than its factorization.

1506729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1506729 is about 1227.4889001535. The cubic root of 1506729 is about 114.6423418671.

The spelling of 1506729 in words is "one million, five hundred six thousand, seven hundred twenty-nine".