89217946 has 12 divisors (see below), whose sum is σ = 135195966. Its totient is φ = 44157200.

The previous prime is 89217923. The next prime is 89217979. The reversal of 89217946 is 64971298.

It can be written as a sum of positive squares in 3 ways, for example, as 84548025 + 4669921 = 9195^2 + 2161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89217896 and 89217905.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18216 + ... + 22588.

Almost surely, 2^89217946 is an apocalyptic number.

89217946 is a deficient number, since it is larger than the sum of its proper divisors (45978020).

89217946 is a wasteful number, since it uses less digits than its factorization.

89217946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4476 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 89217946 is about 9445.5251839165. The cubic root of 89217946 is about 446.8386594146.

The spelling of 89217946 in words is "eighty-nine million, two hundred seventeen thousand, nine hundred forty-six".