735984989 has 2 divisors, whose sum is σ = 735984990. Its totient is φ = 735984988.

The previous prime is 735984917. The next prime is 735985009. The reversal of 735984989 is 989489537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575760025 + 160224964 = 23995^2 + 12658^2 .

It is a cyclic number.

It is not a de Polignac number, because 735984989 - 2²⁰ = 734936413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (735924989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367992494 + 367992495.

It is an arithmetic number, because the mean of its divisors is an integer number (367992495).

Almost surely, 2^735984989 is an apocalyptic number.

It is an amenable number.

735984989 is a deficient number, since it is larger than the sum of its proper divisors (1).

735984989 is an equidigital number, since it uses as much as digits as its factorization.

735984989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The square root of 735984989 is about 27129.0432746899. The cubic root of 735984989 is about 902.8653489172.

It can be divided in two parts, 73598 and 4989, that added together give a palindrome (78587).

The spelling of 735984989 in words is "seven hundred thirty-five million, nine hundred eighty-four thousand, nine hundred eighty-nine".