45698509 has 4 divisors (see below), whose sum is σ = 46473120. Its totient is φ = 44923900.

The previous prime is 45698507. The next prime is 45698573. The reversal of 45698509 is 90589654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45698509 - 2¹ = 45698507 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45698501) 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, 387217 + ... + 387334.

It is an arithmetic number, because the mean of its divisors is an integer number (11618280).

Almost surely, 2^45698509 is an apocalyptic number.

It is an amenable number.

45698509 is a deficient number, since it is larger than the sum of its proper divisors (774611).

45698509 is an equidigital number, since it uses as much as digits as its factorization.

45698509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774610.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 45698509 is about 6760.0672333935. The cubic root of 45698509 is about 357.5202759622.

The spelling of 45698509 in words is "forty-five million, six hundred ninety-eight thousand, five hundred nine".