83445477 has 8 divisors (see below), whose sum is σ = 112137216. Its totient is φ = 55192032.

The previous prime is 83445443. The next prime is 83445491. The reversal of 83445477 is 77454438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83445477 - 2¹⁰ = 83444453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83445437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109128 + ... + 109889.

It is an arithmetic number, because the mean of its divisors is an integer number (14017152).

Almost surely, 2^83445477 is an apocalyptic number.

It is an amenable number.

83445477 is a deficient number, since it is larger than the sum of its proper divisors (28691739).

83445477 is a wasteful number, since it uses less digits than its factorization.

83445477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219147.

The product of its digits is 376320, while the sum is 42.

The square root of 83445477 is about 9134.8495882527. The cubic root of 83445477 is about 436.9860775761.

The spelling of 83445477 in words is "eighty-three million, four hundred forty-five thousand, four hundred seventy-seven".