89656247 has 16 divisors (see below), whose sum is σ = 95766528. Its totient is φ = 83795040.

The previous prime is 89656211. The next prime is 89656253. The reversal of 89656247 is 74265698.

It is a cyclic number.

It is not a de Polignac number, because 89656247 - 2⁶ = 89656183 is a prime.

It is a super-2 number, since 2×89656247² = 16076485252250018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89656297) 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, 136973 + ... + 137625.

It is an arithmetic number, because the mean of its divisors is an integer number (5985408).

Almost surely, 2^89656247 is an apocalyptic number.

89656247 is a deficient number, since it is larger than the sum of its proper divisors (6110281).

89656247 is a wasteful number, since it uses less digits than its factorization.

89656247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its digits is 725760, while the sum is 47.

The square root of 89656247 is about 9468.6982737861. The cubic root of 89656247 is about 447.5691925093.

The spelling of 89656247 in words is "eighty-nine million, six hundred fifty-six thousand, two hundred forty-seven".