83571412 has 24 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 40246080.

The previous prime is 83571409. The next prime is 83571413. The reversal of 83571412 is 21417538.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83571413) 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, 26664 + ... + 29632.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^83571412 is an apocalyptic number.

It is an amenable number.

83571412 is a deficient number, since it is larger than the sum of its proper divisors (68112428).

83571412 is a wasteful number, since it uses less digits than its factorization.

83571412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231 (or 3229 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 83571412 is about 9141.7400969400. The cubic root of 83571412 is about 437.2057986138.

The spelling of 83571412 in words is "eighty-three million, five hundred seventy-one thousand, four hundred twelve".