7072905 has 24 divisors (see below), whose sum is σ = 13165632. Its totient is φ = 3232992.

The previous prime is 7072873. The next prime is 7072909. The reversal of 7072905 is 5092707.

It is a happy number.

It is not a de Polignac number, because 7072905 - 2⁵ = 7072873 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7072909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4077 + ... + 5546.

It is an arithmetic number, because the mean of its divisors is an integer number (548568).

Almost surely, 2^7072905 is an apocalyptic number.

It is an amenable number.

7072905 is a deficient number, since it is larger than the sum of its proper divisors (6092727).

7072905 is a wasteful number, since it uses less digits than its factorization.

7072905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645 (or 9638 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 7072905 is about 2659.4933728062. The cubic root of 7072905 is about 191.9549319133.

The spelling of 7072905 in words is "seven million, seventy-two thousand, nine hundred five".