83631442 has 4 divisors (see below), whose sum is σ = 125447166. Its totient is φ = 41815720.

The previous prime is 83631439. The next prime is 83631461. The reversal of 83631442 is 24413638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81378441 + 2253001 = 9021^2 + 1501^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20907859 + ... + 20907862.

Almost surely, 2^83631442 is an apocalyptic number.

83631442 is a deficient number, since it is larger than the sum of its proper divisors (41815724).

83631442 is a wasteful number, since it uses less digits than its factorization.

83631442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41815723.

The product of its digits is 13824, while the sum is 31.

The square root of 83631442 is about 9145.0227993155. The cubic root of 83631442 is about 437.3104563424.

The spelling of 83631442 in words is "eighty-three million, six hundred thirty-one thousand, four hundred forty-two".