44697881 has 2 divisors, whose sum is σ = 44697882. Its totient is φ = 44697880.

The previous prime is 44697871. The next prime is 44697883. The reversal of 44697881 is 18879644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 12673600 = 5659^2 + 3560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44697881 is a prime.

It is a super-2 number, since 2×44697881² = 3995801131780322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 44697883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44697883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22348940 + 22348941.

It is an arithmetic number, because the mean of its divisors is an integer number (22348941).

Almost surely, 2^44697881 is an apocalyptic number.

It is an amenable number.

44697881 is a deficient number, since it is larger than the sum of its proper divisors (1).

44697881 is an equidigital number, since it uses as much as digits as its factorization.

44697881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 44697881 is about 6685.6473882489. The cubic root of 44697881 is about 354.8915386438.

The spelling of 44697881 in words is "forty-four million, six hundred ninety-seven thousand, eight hundred eighty-one".