89827970 has 16 divisors (see below), whose sum is σ = 161819640. Its totient is φ = 35902464.

The previous prime is 89827963. The next prime is 89827979. The reversal of 89827970 is 7972898.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63377521 + 26450449 = 7961^2 + 5143^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89827979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13346 + ... + 18914.

Almost surely, 2^89827970 is an apocalyptic number.

89827970 is a deficient number, since it is larger than the sum of its proper divisors (71991670).

89827970 is a wasteful number, since it uses less digits than its factorization.

89827970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 89827970 is about 9477.7618666012. The cubic root of 89827970 is about 447.8547606626.

The spelling of 89827970 in words is "eighty-nine million, eight hundred twenty-seven thousand, nine hundred seventy".