44897789 has 2 divisors, whose sum is σ = 44897790. Its totient is φ = 44897788.

The previous prime is 44897759. The next prime is 44897819. The reversal of 44897789 is 98779844.

It is a balanced prime because it is at equal distance from previous prime (44897759) and next prime (44897819).

It can be written as a sum of positive squares in only one way, i.e., 44448889 + 448900 = 6667^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 44897789 - 2⁸ = 44897533 is a prime.

It is a super-2 number, since 2×44897789² = 4031622914177042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44897759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22448894 + 22448895.

It is an arithmetic number, because the mean of its divisors is an integer number (22448895).

Almost surely, 2^44897789 is an apocalyptic number.

It is an amenable number.

44897789 is a deficient number, since it is larger than the sum of its proper divisors (1).

44897789 is an equidigital number, since it uses as much as digits as its factorization.

44897789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 56.

The square root of 44897789 is about 6700.5812434445. The cubic root of 44897789 is about 355.4198273212.

It can be divided in two parts, 44 and 897789, that multiplied together give a triangular number (39502716 = T₈₈₈₈).

The spelling of 44897789 in words is "forty-four million, eight hundred ninety-seven thousand, seven hundred eighty-nine".