45372889 has 4 divisors (see below), whose sum is σ = 45392400. Its totient is φ = 45353380.

The previous prime is 45372851. The next prime is 45372913. The reversal of 45372889 is 98827354.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98827354 = 2 ⋅49413677.

It is a cyclic number.

It is not a de Polignac number, because 45372889 - 2⁹ = 45372377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45372389) 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, 5707 + ... + 11104.

It is an arithmetic number, because the mean of its divisors is an integer number (11348100).

Almost surely, 2^45372889 is an apocalyptic number.

It is an amenable number.

45372889 is a deficient number, since it is larger than the sum of its proper divisors (19511).

45372889 is a wasteful number, since it uses less digits than its factorization.

45372889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19510.

The product of its digits is 483840, while the sum is 46.

The square root of 45372889 is about 6735.9400977146. The cubic root of 45372889 is about 356.6690931600.

The spelling of 45372889 in words is "forty-five million, three hundred seventy-two thousand, eight hundred eighty-nine".