45006989 has 2 divisors, whose sum is σ = 45006990. Its totient is φ = 45006988.

The previous prime is 45006977. The next prime is 45007013. The reversal of 45006989 is 98960054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 5442889 = 6290^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 45006989 - 2⁸ = 45006733 is a prime.

It is a super-2 number, since 2×45006989² = 4051258117692242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45006919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22503494 + 22503495.

It is an arithmetic number, because the mean of its divisors is an integer number (22503495).

Almost surely, 2^45006989 is an apocalyptic number.

It is an amenable number.

45006989 is a deficient number, since it is larger than the sum of its proper divisors (1).

45006989 is an equidigital number, since it uses as much as digits as its factorization.

45006989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 45006989 is about 6708.7248415776. The cubic root of 45006989 is about 355.7077436642.

The spelling of 45006989 in words is "forty-five million, six thousand, nine hundred eighty-nine".