89438761 has 2 divisors, whose sum is σ = 89438762. Its totient is φ = 89438760.

The previous prime is 89438737. The next prime is 89438773. The reversal of 89438761 is 16783498.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48734361 + 40704400 = 6981^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 89438761 - 2⁷ = 89438633 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89438161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44719380 + 44719381.

It is an arithmetic number, because the mean of its divisors is an integer number (44719381).

Almost surely, 2^89438761 is an apocalyptic number.

It is an amenable number.

89438761 is a deficient number, since it is larger than the sum of its proper divisors (1).

89438761 is an equidigital number, since it uses as much as digits as its factorization.

89438761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 89438761 is about 9457.2068286572. The cubic root of 89438761 is about 447.2069985693.

The spelling of 89438761 in words is "eighty-nine million, four hundred thirty-eight thousand, seven hundred sixty-one".