44890987 has 2 divisors, whose sum is σ = 44890988. Its totient is φ = 44890986.

The previous prime is 44890973. The next prime is 44891003. The reversal of 44890987 is 78909844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44890987 - 2²³ = 36502379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44890987.

It is not a weakly prime, because it can be changed into another prime (44890187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22445493 + 22445494.

It is an arithmetic number, because the mean of its divisors is an integer number (22445494).

Almost surely, 2^44890987 is an apocalyptic number.

44890987 is a deficient number, since it is larger than the sum of its proper divisors (1).

44890987 is an equidigital number, since it uses as much as digits as its factorization.

44890987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 44890987 is about 6700.0736563115. The cubic root of 44890987 is about 355.4018777531.

The spelling of 44890987 in words is "forty-four million, eight hundred ninety thousand, nine hundred eighty-seven".