45090779 has 4 divisors (see below), whose sum is σ = 45108000. Its totient is φ = 45073560.

The previous prime is 45090761. The next prime is 45090797. The reversal of 45090779 is 97709054.

It is a happy number.

45090779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (45090761) and next prime (45090797).

It is a cyclic number.

It is not a de Polignac number, because 45090779 - 2¹⁶ = 45025243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45090079) 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 3 ways as a sum of consecutive naturals, for example, 3779 + ... + 10220.

It is an arithmetic number, because the mean of its divisors is an integer number (11277000).

Almost surely, 2^45090779 is an apocalyptic number.

45090779 is a deficient number, since it is larger than the sum of its proper divisors (17221).

45090779 is a wasteful number, since it uses less digits than its factorization.

45090779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 45090779 is about 6714.9667906848. The cubic root of 45090779 is about 355.9283484759.

The spelling of 45090779 in words is "forty-five million, ninety thousand, seven hundred seventy-nine".