45991785 has 16 divisors (see below), whose sum is σ = 84099456. Its totient is φ = 21024768.

The previous prime is 45991769. The next prime is 45991807. The reversal of 45991785 is 58719954.

It is not a de Polignac number, because 45991785 - 2⁴ = 45991769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218904 + ... + 219113.

It is an arithmetic number, because the mean of its divisors is an integer number (5256216).

Almost surely, 2^45991785 is an apocalyptic number.

It is an amenable number.

45991785 is a deficient number, since it is larger than the sum of its proper divisors (38107671).

45991785 is a wasteful number, since it uses less digits than its factorization.

45991785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438032.

The product of its digits is 453600, while the sum is 48.

The square root of 45991785 is about 6781.7243382491. The cubic root of 45991785 is about 358.2834563113.

The spelling of 45991785 in words is "forty-five million, nine hundred ninety-one thousand, seven hundred eighty-five".