83444977 has 16 divisors (see below), whose sum is σ = 107625600. Its totient is φ = 62778240.

The previous prime is 83444971. The next prime is 83444981. The reversal of 83444977 is 77944438.

It is not a de Polignac number, because 83444977 - 2⁷ = 83444849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83444971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16452 + ... + 20917.

It is an arithmetic number, because the mean of its divisors is an integer number (6726600).

Almost surely, 2^83444977 is an apocalyptic number.

It is an amenable number.

83444977 is a deficient number, since it is larger than the sum of its proper divisors (24180623).

83444977 is a wasteful number, since it uses less digits than its factorization.

83444977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37416.

The product of its digits is 677376, while the sum is 46.

The square root of 83444977 is about 9134.8222204923. The cubic root of 83444977 is about 436.9852047767.

The spelling of 83444977 in words is "eighty-three million, four hundred forty-four thousand, nine hundred seventy-seven".