89779142 has 16 divisors (see below), whose sum is σ = 150096240. Its totient is φ = 40025088.

The previous prime is 89779117. The next prime is 89779153. The reversal of 89779142 is 24197798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68843 + ... + 70134.

It is an arithmetic number, because the mean of its divisors is an integer number (9381015).

Almost surely, 2^89779142 is an apocalyptic number.

89779142 is a deficient number, since it is larger than the sum of its proper divisors (60317098).

89779142 is a wasteful number, since it uses less digits than its factorization.

89779142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139015.

The product of its digits is 254016, while the sum is 47.

The square root of 89779142 is about 9475.1855918499. The cubic root of 89779142 is about 447.7735988014.

The spelling of 89779142 in words is "eighty-nine million, seven hundred seventy-nine thousand, one hundred forty-two".