45979809 has 8 divisors (see below), whose sum is σ = 61399680. Its totient is φ = 30606576.

The previous prime is 45979799. The next prime is 45979811. The reversal of 45979809 is 90897954.

It is a happy number.

45979809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-45979809 is a prime.

It is a super-2 number, since 2×45979809² = 4228285671352962, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45979709) 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 7 ways as a sum of consecutive naturals, for example, 9289 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (7674960).

Almost surely, 2^45979809 is an apocalyptic number.

It is an amenable number.

45979809 is a deficient number, since it is larger than the sum of its proper divisors (15419871).

45979809 is a wasteful number, since it uses less digits than its factorization.

45979809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23319.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 45979809 is about 6780.8413194824. The cubic root of 45979809 is about 358.2523552849.

The spelling of 45979809 in words is "forty-five million, nine hundred seventy-nine thousand, eight hundred nine".