89193749 has 2 divisors, whose sum is σ = 89193750. Its totient is φ = 89193748.

The previous prime is 89193703. The next prime is 89193761. The reversal of 89193749 is 94739198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57912100 + 31281649 = 7610^2 + 5593^2 .

It is a cyclic number.

It is not a de Polignac number, because 89193749 - 2¹⁶ = 89128213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 89193697 and 89193706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89190749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44596874 + 44596875.

It is an arithmetic number, because the mean of its divisors is an integer number (44596875).

Almost surely, 2^89193749 is an apocalyptic number.

It is an amenable number.

89193749 is a deficient number, since it is larger than the sum of its proper divisors (1).

89193749 is an equidigital number, since it uses as much as digits as its factorization.

89193749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 89193749 is about 9444.2442259823. The cubic root of 89193749 is about 446.7982597225.

The spelling of 89193749 in words is "eighty-nine million, one hundred ninety-three thousand, seven hundred forty-nine".