45678889 has 4 divisors (see below), whose sum is σ = 45738756. Its totient is φ = 45619024.

The previous prime is 45678887. The next prime is 45678901. The reversal of 45678889 is 98887654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24334489 + 21344400 = 4933^2 + 4620^2 .

It is a cyclic number.

It is not a de Polignac number, because 45678889 - 2¹ = 45678887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (45678887) 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, 28774 + ... + 30319.

It is an arithmetic number, because the mean of its divisors is an integer number (11434689).

Almost surely, 2^45678889 is an apocalyptic number.

It is an amenable number.

45678889 is a deficient number, since it is larger than the sum of its proper divisors (59867).

45678889 is an equidigital number, since it uses as much as digits as its factorization.

45678889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59866.

The product of its digits is 3870720, while the sum is 55.

The square root of 45678889 is about 6758.6159086014. The cubic root of 45678889 is about 357.4691032356.

It can be divided in two parts, 4567 and 8889, that added together give a square (13456 = 116²).

The spelling of 45678889 in words is "forty-five million, six hundred seventy-eight thousand, eight hundred eighty-nine".