89901437 has 2 divisors, whose sum is σ = 89901438. Its totient is φ = 89901436.

The previous prime is 89901391. The next prime is 89901463. The reversal of 89901437 is 73410998.

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., 46526041 + 43375396 = 6821^2 + 6586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89901437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 89901394 and 89901403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89901467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44950718 + 44950719.

It is an arithmetic number, because the mean of its divisors is an integer number (44950719).

Almost surely, 2^89901437 is an apocalyptic number.

It is an amenable number.

89901437 is a deficient number, since it is larger than the sum of its proper divisors (1).

89901437 is an equidigital number, since it uses as much as digits as its factorization.

89901437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 89901437 is about 9481.6368312649. The cubic root of 89901437 is about 447.9768220497.

The spelling of 89901437 in words is "eighty-nine million, nine hundred one thousand, four hundred thirty-seven".