44990987 has 2 divisors, whose sum is σ = 44990988. Its totient is φ = 44990986.

The previous prime is 44990983. The next prime is 44990999. The reversal of 44990987 is 78909944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44990987 - 2² = 44990983 is a prime.

It is a super-2 number, since 2×44990987² = 4048377822468338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44990983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22495493 + 22495494.

It is an arithmetic number, because the mean of its divisors is an integer number (22495494).

Almost surely, 2^44990987 is an apocalyptic number.

44990987 is a deficient number, since it is larger than the sum of its proper divisors (1).

44990987 is an equidigital number, since it uses as much as digits as its factorization.

44990987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 44990987 is about 6707.5321095020. The cubic root of 44990987 is about 355.6655819898.

The spelling of 44990987 in words is "forty-four million, nine hundred ninety thousand, nine hundred eighty-seven".