89291437 has 2 divisors, whose sum is σ = 89291438. Its totient is φ = 89291436.

The previous prime is 89291407. The next prime is 89291441. The reversal of 89291437 is 73419298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 4301476 = 9219^2 + 2074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89291437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89291393 and 89291402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89291407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44645718 + 44645719.

It is an arithmetic number, because the mean of its divisors is an integer number (44645719).

Almost surely, 2^89291437 is an apocalyptic number.

It is an amenable number.

89291437 is a deficient number, since it is larger than the sum of its proper divisors (1).

89291437 is an equidigital number, since it uses as much as digits as its factorization.

89291437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 89291437 is about 9449.4146379551. The cubic root of 89291437 is about 446.9613163794.

It can be divided in two parts, 892 and 91437, that added together give a palindrome (92329).

The spelling of 89291437 in words is "eighty-nine million, two hundred ninety-one thousand, four hundred thirty-seven".