7090045 has 4 divisors (see below), whose sum is σ = 8508060. Its totient is φ = 5672032.

The previous prime is 7090043. The next prime is 7090063. The reversal of 7090045 is 5400907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5400907 = 191 ⋅28277.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 3193369 = 1974^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 7090045 - 2¹ = 7090043 is a prime.

7090045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7090043) 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, 709000 + ... + 709009.

It is an arithmetic number, because the mean of its divisors is an integer number (2127015).

Almost surely, 2^7090045 is an apocalyptic number.

It is an amenable number.

7090045 is a deficient number, since it is larger than the sum of its proper divisors (1418015).

7090045 is a wasteful number, since it uses less digits than its factorization.

7090045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418014.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 7090045 is about 2662.7138411778. The cubic root of 7090045 is about 192.1098637002.

The spelling of 7090045 in words is "seven million, ninety thousand, forty-five".