89742885 has 16 divisors (see below), whose sum is σ = 144422784. Its totient is φ = 47584832.

The previous prime is 89742869. The next prime is 89742889. The reversal of 89742885 is 58824798.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89742885 - 2⁴ = 89742869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89742889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14697 + ... + 19886.

It is an arithmetic number, because the mean of its divisors is an integer number (9026424).

Almost surely, 2^89742885 is an apocalyptic number.

It is an amenable number.

89742885 is a deficient number, since it is larger than the sum of its proper divisors (54679899).

89742885 is a wasteful number, since it uses less digits than its factorization.

89742885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34764.

The product of its digits is 1290240, while the sum is 51.

The square root of 89742885 is about 9473.2721379680. The cubic root of 89742885 is about 447.7133134056.

The spelling of 89742885 in words is "eighty-nine million, seven hundred forty-two thousand, eight hundred eighty-five".