754086989 has 2 divisors, whose sum is σ = 754086990. Its totient is φ = 754086988.

The previous prime is 754086979. The next prime is 754087043. The reversal of 754086989 is 989680457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751308100 + 2778889 = 27410^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 754086989 - 2²⁰ = 753038413 is a prime.

It is a super-2 number, since 2×754086989² = 1137294373958172242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (754086919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377043494 + 377043495.

It is an arithmetic number, because the mean of its divisors is an integer number (377043495).

Almost surely, 2^754086989 is an apocalyptic number.

It is an amenable number.

754086989 is a deficient number, since it is larger than the sum of its proper divisors (1).

754086989 is an equidigital number, since it uses as much as digits as its factorization.

754086989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 754086989 is about 27460.6443660742. The cubic root of 754086989 is about 910.2076525680.

The spelling of 754086989 in words is "seven hundred fifty-four million, eighty-six thousand, nine hundred eighty-nine".