89978734 has 4 divisors (see below), whose sum is σ = 134968104. Its totient is φ = 44989366.

The previous prime is 89978711. The next prime is 89978753. The reversal of 89978734 is 43787998.

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, 22494682 + ... + 22494685.

It is an arithmetic number, because the mean of its divisors is an integer number (33742026).

Almost surely, 2^89978734 is an apocalyptic number.

89978734 is a deficient number, since it is larger than the sum of its proper divisors (44989370).

89978734 is a wasteful number, since it uses less digits than its factorization.

89978734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44989369.

The product of its digits is 3048192, while the sum is 55.

The square root of 89978734 is about 9485.7120976762. The cubic root of 89978734 is about 448.1051750037.

The spelling of 89978734 in words is "eighty-nine million, nine hundred seventy-eight thousand, seven hundred thirty-four".