89030978 has 4 divisors (see below), whose sum is σ = 133546470. Its totient is φ = 44515488.

The previous prime is 89030971. The next prime is 89030983. The reversal of 89030978 is 87903098.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 88604569 + 426409 = 9413^2 + 653^2 .

It is not an unprimeable number, because it can be changed into a prime (89030971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22257743 + ... + 22257746.

Almost surely, 2^89030978 is an apocalyptic number.

89030978 is a deficient number, since it is larger than the sum of its proper divisors (44515492).

89030978 is a wasteful number, since it uses less digits than its factorization.

89030978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44515491.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 89030978 is about 9435.6228199309. The cubic root of 89030978 is about 446.5263046258.

The spelling of 89030978 in words is "eighty-nine million, thirty thousand, nine hundred seventy-eight".