7485729 has 16 divisors (see below), whose sum is σ = 10856448. Its totient is φ = 4568832.

The previous prime is 7485727. The next prime is 7485749. The reversal of 7485729 is 9275847.

7485729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7485729 - 2¹ = 7485727 is a prime.

It is a super-2 number, since 2×7485729² = 112072277322882, which contains 22 as substring.

7485729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7485721) 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, 97 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (678528).

Almost surely, 2^7485729 is an apocalyptic number.

It is an amenable number.

7485729 is a deficient number, since it is larger than the sum of its proper divisors (3370719).

7485729 is a wasteful number, since it uses less digits than its factorization.

7485729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024.

The product of its digits is 141120, while the sum is 42.

The square root of 7485729 is about 2736.0060306951. The cubic root of 7485729 is about 195.6191497262.

The spelling of 7485729 in words is "seven million, four hundred eighty-five thousand, seven hundred twenty-nine".