89820956 has 18 divisors (see below), whose sum is σ = 158367888. Its totient is φ = 44575440.

The previous prime is 89820953. The next prime is 89820971. The reversal of 89820956 is 65902898.

It is a self number, because there is not a number n which added to its sum of digits gives 89820956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89820953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98141 + ... + 99051.

It is an arithmetic number, because the mean of its divisors is an integer number (8798216).

Almost surely, 2^89820956 is an apocalyptic number.

It is an amenable number.

89820956 is a deficient number, since it is larger than the sum of its proper divisors (68546932).

89820956 is a wasteful number, since it uses less digits than its factorization.

89820956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 89820956 is about 9477.3918353100. The cubic root of 89820956 is about 447.8431038069.

The spelling of 89820956 in words is "eighty-nine million, eight hundred twenty thousand, nine hundred fifty-six".