7406729 has 4 divisors (see below), whose sum is σ = 8080080. Its totient is φ = 6733380.

The previous prime is 7406723. The next prime is 7406731. The reversal of 7406729 is 9276047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7406729 - 2⁸ = 7406473 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7406723) 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, 336659 + ... + 336680.

It is an arithmetic number, because the mean of its divisors is an integer number (2020020).

Almost surely, 2^7406729 is an apocalyptic number.

It is an amenable number.

7406729 is a deficient number, since it is larger than the sum of its proper divisors (673351).

7406729 is a wasteful number, since it uses less digits than its factorization.

7406729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673350.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 7406729 is about 2721.5306355064. The cubic root of 7406729 is about 194.9285646733.

The spelling of 7406729 in words is "seven million, four hundred six thousand, seven hundred twenty-nine".