83381630 has 16 divisors (see below), whose sum is σ = 154929024. Its totient is φ = 32276640.

The previous prime is 83381611. The next prime is 83381653. The reversal of 83381630 is 3618338.

It is a happy number.

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, 134177 + ... + 134796.

It is an arithmetic number, because the mean of its divisors is an integer number (9683064).

Almost surely, 2^83381630 is an apocalyptic number.

83381630 is a deficient number, since it is larger than the sum of its proper divisors (71547394).

83381630 is a wasteful number, since it uses less digits than its factorization.

83381630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269011.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 83381630 is about 9131.3542259623. The cubic root of 83381630 is about 436.8745981209.

Adding to 83381630 its reverse (3618338), we get a palindrome (86999968).

The spelling of 83381630 in words is "eighty-three million, three hundred eighty-one thousand, six hundred thirty".