45863989 has 2 divisors, whose sum is σ = 45863990. Its totient is φ = 45863988.

The previous prime is 45863981. The next prime is 45864029. The reversal of 45863989 is 98936854.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 2528100 = 6583^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 45863989 - 2³ = 45863981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45863981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22931994 + 22931995.

It is an arithmetic number, because the mean of its divisors is an integer number (22931995).

Almost surely, 2^45863989 is an apocalyptic number.

It is an amenable number.

45863989 is a deficient number, since it is larger than the sum of its proper divisors (1).

45863989 is an equidigital number, since it uses as much as digits as its factorization.

45863989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 52.

The square root of 45863989 is about 6772.2956964385. The cubic root of 45863989 is about 357.9512979534.

The spelling of 45863989 in words is "forty-five million, eight hundred sixty-three thousand, nine hundred eighty-nine".