7989045 has 8 divisors (see below), whose sum is σ = 12782496. Its totient is φ = 4260816.

The previous prime is 7989011. The next prime is 7989067. The reversal of 7989045 is 5409897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7989045 - 2⁸ = 7988789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7988988 and 7989006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266287 + ... + 266316.

It is an arithmetic number, because the mean of its divisors is an integer number (1597812).

Almost surely, 2^7989045 is an apocalyptic number.

It is an amenable number.

7989045 is a deficient number, since it is larger than the sum of its proper divisors (4793451).

7989045 is a wasteful number, since it uses less digits than its factorization.

7989045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532611.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 7989045 is about 2826.4898726159. The cubic root of 7989045 is about 199.9086666308.

Subtracting from 7989045 its product of nonzero digits (90720), we obtain a triangular number (7898325 = T₃₉₇₄).

The spelling of 7989045 in words is "seven million, nine hundred eighty-nine thousand, forty-five".