45847891 has 2 divisors, whose sum is σ = 45847892. Its totient is φ = 45847890.

The previous prime is 45847883. The next prime is 45847903. The reversal of 45847891 is 19874854.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45847891 - 2³ = 45847883 is a prime.

It is not a weakly prime, because it can be changed into another prime (45847391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22923945 + 22923946.

It is an arithmetic number, because the mean of its divisors is an integer number (22923946).

Almost surely, 2^45847891 is an apocalyptic number.

45847891 is a deficient number, since it is larger than the sum of its proper divisors (1).

45847891 is an equidigital number, since it uses as much as digits as its factorization.

45847891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 46.

The square root of 45847891 is about 6771.1070734408. The cubic root of 45847891 is about 357.9094134275.

The spelling of 45847891 in words is "forty-five million, eight hundred forty-seven thousand, eight hundred ninety-one".