40700789 has 2 divisors, whose sum is σ = 40700790. Its totient is φ = 40700788.

The previous prime is 40700773. The next prime is 40700801. The reversal of 40700789 is 98700704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29343889 + 11356900 = 5417^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 40700789 - 2⁴ = 40700773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40700719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20350394 + 20350395.

It is an arithmetic number, because the mean of its divisors is an integer number (20350395).

Almost surely, 2^40700789 is an apocalyptic number.

It is an amenable number.

40700789 is a deficient number, since it is larger than the sum of its proper divisors (1).

40700789 is an equidigital number, since it uses as much as digits as its factorization.

40700789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 40700789 is about 6379.7169999930. The cubic root of 40700789 is about 343.9808585212.

The spelling of 40700789 in words is "forty million, seven hundred thousand, seven hundred eighty-nine".