89878534 has 4 divisors (see below), whose sum is σ = 134817804. Its totient is φ = 44939266.

The previous prime is 89878463. The next prime is 89878567. The reversal of 89878534 is 43587898.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22469632 + ... + 22469635.

It is an arithmetic number, because the mean of its divisors is an integer number (33704451).

Almost surely, 2^89878534 is an apocalyptic number.

89878534 is a deficient number, since it is larger than the sum of its proper divisors (44939270).

89878534 is a wasteful number, since it uses less digits than its factorization.

89878534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44939269.

The product of its digits is 1935360, while the sum is 52.

The square root of 89878534 is about 9480.4289987321. The cubic root of 89878534 is about 447.9387771089.

The spelling of 89878534 in words is "eighty-nine million, eight hundred seventy-eight thousand, five hundred thirty-four".