45720067 has 4 divisors (see below), whose sum is σ = 47707920. Its totient is φ = 43732216.

The previous prime is 45720041. The next prime is 45720083. The reversal of 45720067 is 76002754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76002754 = 2 ⋅38001377.

It is a cyclic number.

It is not a de Polignac number, because 45720067 - 2⁷ = 45719939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45720007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993892 + ... + 993937.

It is an arithmetic number, because the mean of its divisors is an integer number (11926980).

Almost surely, 2^45720067 is an apocalyptic number.

45720067 is a deficient number, since it is larger than the sum of its proper divisors (1987853).

45720067 is a wasteful number, since it uses less digits than its factorization.

45720067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987852.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 45720067 is about 6761.6615561561. The cubic root of 45720067 is about 357.5764864792.

The spelling of 45720067 in words is "forty-five million, seven hundred twenty thousand, sixty-seven".