89740237 has 4 divisors (see below), whose sum is σ = 91004256. Its totient is φ = 88476220.

The previous prime is 89740219. The next prime is 89740241. The reversal of 89740237 is 73204798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89740237 - 2²³ = 81351629 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89740237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89740247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631903 + ... + 632044.

It is an arithmetic number, because the mean of its divisors is an integer number (22751064).

Almost surely, 2^89740237 is an apocalyptic number.

It is an amenable number.

89740237 is a deficient number, since it is larger than the sum of its proper divisors (1264019).

89740237 is a wasteful number, since it uses less digits than its factorization.

89740237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264018.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 89740237 is about 9473.1323753023. The cubic root of 89740237 is about 447.7089098754.

The spelling of 89740237 in words is "eighty-nine million, seven hundred forty thousand, two hundred thirty-seven".