45899609 has 16 divisors (see below), whose sum is σ = 55875456. Its totient is φ = 36806400.

The previous prime is 45899597. The next prime is 45899629. The reversal of 45899609 is 90699854.

It is a cyclic number.

It is not a de Polignac number, because 45899609 - 2⁴ = 45899593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45899629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20474 + ... + 22604.

It is an arithmetic number, because the mean of its divisors is an integer number (3492216).

Almost surely, 2^45899609 is an apocalyptic number.

It is an amenable number.

45899609 is a deficient number, since it is larger than the sum of its proper divisors (9975847).

45899609 is a wasteful number, since it uses less digits than its factorization.

45899609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 45899609 is about 6774.9250180353. The cubic root of 45899609 is about 358.0439409044.

The spelling of 45899609 in words is "forty-five million, eight hundred ninety-nine thousand, six hundred nine".